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OPAM-LIST(1)			  Opam Manual			  OPAM-LIST(1)

NAME
       opam-list - Display the list of available packages.

SYNOPSIS
       opam list [--check] [--no-depexts] [--silent] [OPTION] [PATTERNS]

DESCRIPTION
       List selections of opam packages.

       Without argument, the command displays the list of currently installed
       packages. With pattern arguments, lists all available packages matching
       one of the patterns.

       Unless the --short switch is used, the output format displays one
       package per line, and each line contains	the name of the	package, the
       installed version or `--' if the	package	is not installed, and a	short
       description. In color mode, manually installed packages (as opposed to
       automatically installed ones because of dependencies) are underlined.

       See section PACKAGE SELECTION OPTIONS for all the ways to select	the
       packages	to be displayed, and section OUTPUT FORMAT OPTIONS to
       customise the output format.

       For a more detailed description of packages, see	opam show. For
       extended	search capabilities within the packages' metadata, see opam
       search.

ARGUMENTS
       PATTERNS
	   Package  patterns  with  globs.  Unless --search is specified, they
	   match againsta NAME or NAME.VERSION

ORDER-SENSIBLE SELECTORS
       These options are sensible to the order they are	given to the  command.
       For  example:  --available  --latests-only  will	 first	list  all  the
       available packages, then	choose only the	latest packages	in  that  set;
       while  --latests-only  --available  will	 first	lists  all  the	latest
       packages, then only show	the ones that are available in that set.

       -a, --available
	   List	only packages that are available on the	current	system

       -A, --all
	   Include all,	even uninstalled or unavailable	packages

       --base
	   Removed in 2.1, use --invariant instead.

       -i, --installed
	   List	installed packages only. This is the default when  no  further
	   arguments are supplied

       --installable
	   List	 only  packages	 that  can  be installed on the	current	switch
	   (this calls the solver and may be more costly; a package  depending
	   on	an   unavailable  package  may	be  available,	but  is	 never
	   installable)

       --invariant
	   List	only the immutable base	of the current switch (i.e.  invariant
	   packages)

       --latests-only
	   List	only the latest	version	of each	package.

       --pinned
	   List	only the pinned	packages

       --roots,	--installed-roots
	   List	 only  packages	 that were explicitly installed, excluding the
	   ones	installed as dependencies

PACKAGE	SELECTION OPTIONS
       These options will always be given to the command in  the  same	order,
       regardless of the order they have been given to the command.

       --coinstallable-with=PACKAGES
	   Only	list packages that are compatible with all of PACKAGES.

       --conflicts-with=PACKAGES
	   List	packages that have declared conflicts with at least one	of the
	   given  list.	 This  includes	conflicts defined from the packages in
	   the list, from the other package, or	by  a  common  conflict-class:
	   field.

       --depends-on=PACKAGES
	   List	  only	packages  that	depend	on  one	 of  (comma-separated)
	   PACKAGES.

       --depopts
	   Include optional dependencies in dependency requests.

       --dev
	   Include development packages	in dependencies.

       --field-match=FIELD:PATTERN
	   Filter packages with	a match	for PATTERN on the given FIELD

       --has-flag=FLAG
	   Only	include	packages which have the	given flag set.	Package	 flags
	   are one of: light-uninstall verbose plugin compiler conf

       --has-tag=TAG
	   Only	includes packages which	have the given tag set

       --no-switch
	   List	what is	available from the repositories, without consideration
	   for	the  current  (or  any	other)	switch	(installed  or	pinned
	   packages, etc.)

       --nobuild
	   Exclude build dependencies (they are	included by default).

       --or
	   Instead of selecting	packages that match all	the  criteria,	select
	   packages that match any of them

       --owns-file=FILE
	   Finds installed packages responsible	for installing the given file

       --post
	   Include dependencies	tagged as post.

       --recursive
	   With	 `--depends-on'	 and  `--required-by',	display	all transitive
	   dependencies	rather than just direct	dependencies.

       --repos=REPOS
	   Include only	packages that took their origin	from one of the	 given
	   repositories	 (unless  no-switch  is	 also specified, this excludes
	   pinned packages).

       --required-by=PACKAGES
	   List	only the dependencies of (comma-separated) PACKAGES.

       --resolve=PACKAGES
	   Restrict to a solution to install (comma-separated) PACKAGES,  i.e.
	   a  consistent  set  of  packages  including	those.	This is	subtly
	   different  from  `--required-by   --recursive`,   which   is	  more
	   predictable	 and   can't   fail,   but   lists   all  dependencies
	   independently without ensuring consistency. Without	`--installed`,
	   the	answer	is  self-contained  and	 independent  of  the  current
	   installation. With `--installed', it's computed  from  the  set  of
	   currently  installed	 packages.  `--no-switch`  further  makes  the
	   solution  independent   from	  the	currently   pinned   packages,
	   architecture,   and	 compiler   version.   The   combination  with
	   `--depopts' is not supported.

       --search
	   Match PATTERNS against  the	full  descriptions  of	packages,  and
	   require  all	of them	to match, instead of requiring at least	one to
	   match against package names (unless --or is also specified).

       -t, --with-test,	--test
	   Include test-only dependencies.

       --with-dev-setup
	   Include developer only dependencies.

       --with-doc, --doc
	   Include doc-only dependencies.

OUTPUT FORMAT OPTIONS
       --columns=COLUMNS
	   Select the  columns	to  display  among:  name,  version,  package,
	   synopsis,	  synopsis-or-target,	   description,	     <field>:,
	   installed-version,	    pin,	source-hash,	    opam-file,
	   all-installed-versions,	available-versions,	 all-versions,
	   repository, installed-files,	vc-ref,	depexts. The default  is  name
	   when	   --short    is    present   and   name,   installed-version,
	   synopsis-or-target otherwise.

       -e, --external, --depexts
	   Instead  of	displaying  the	 packages,  display   their   external
	   dependencies	 that  are  associated	with  the current system. This
	   excludes other display options. Rather than	using  this  directly,
	   you	should	probably  head	for the	`depext' plugin, that will use
	   your	system package management system to handle the installation of
	   the dependencies. Run `opam depext'.

       --normalise
	   Print the values of opam fields normalised

       -S, --sort
	   Sort	the packages in	dependency order (i.e. an order	in which  they
	   could be individually installed.)

       -s, --short
	   Don't print a header, and sets the default columns to name only. If
	   you need package versions included, use --columns=package instead

       --separator=STRING (absent= )
	   Set the column-separator string

       -V, --all-versions
	   Normally,  when  multiple  versions of a package match, only	one is
	   shown in the	output (the installed  one,  the  pinned-to  one,  or,
	   failing  that,  the highest one available or	the highest one). This
	   flag	disables this behaviour	and shows all matching versions.  This
	   also	changes	the default display format to include package versions
	   instead of just package names (including when --short is set). This
	   is  automatically  turned on	when a single non-pattern package name
	   is provided on the command-line.

       --vars=[VAR=STR,...]
	   Define  the	given  variable	 bindings.   Typically	 useful	  with
	   --external  to  override  the values	for arch, os, os-distribution,
	   os-version, os-family.

       --wrap
	   Wrap	long lines, the	default	being to truncate when displaying on a
	   terminal, or	to keep	as is otherwise

OPTIONS
       --check
	   Don't write anything	in the output, exit with return	code 0 if  the
	   list	is not empty, 1	otherwise.

       --no-depexts
	   Disable  external  dependencies handling for	the query. This	can be
	   used	to include packages that are marked as unavailable because  of
	   an unavailable system dependency.

       --silent
	   Removed in 2.1, use --check instead.

COMMON OPTIONS
       These options are common	to all commands.

       --best-effort
	   Don't  fail	if  all	 requested packages can't be installed:	try to
	   install as many as possible.	Note that not all external solvers may
	   support this	option (recent versions	of  aspcud  or	mccs  should).
	   This	is equivalent to setting $OPAMBESTEFFORT environment variable.

       --cli=MAJOR.MINOR (absent=2.3)
	   Use the command-line	interface syntax and semantics of MAJOR.MINOR.
	   Intended  for  any  persistent  use	of  opam (scripts, blog	posts,
	   etc.), any version of opam in the same MAJOR	series will behave  as
	   for the specified MINOR release. The	flag was not available in opam
	   2.0,	so to select the 2.0 CLI, set the OPAMCLI environment variable
	   to 2.0 instead of using this	parameter.

       --color=WHEN
	   Colorize the	output.	WHEN must be one of always, never or auto.

       --confirm-level=LEVEL
	   Confirmation	  level,  LEVEL	 must  be  one	of  ask,  no,  yes  or
	   unsafe-yes. Can be specified	more than once.	If --yes or  --no  are
	   also	 given,	 the  value  of	the last --confirm-level is taken into
	   account. This is equivalent to setting  $OPAMCONFIRMLEVEL`.

       --criteria=CRITERIA
	   Specify user	preferences  for  dependency  solving  for  this  run.
	   Overrides	    $OPAMCRITERIA,	  $OPAMFIXUPCRITERIA	   and
	   $OPAMUPGRADECRITERIA. For details on	the  supported	language,  and
	   the	       external		solvers		available,	   see
	   http://opam.ocaml.org/doc/External_solvers.html. A general guide to
	   using     solver	preferences	can	 be	 found	    at
	   http://www.dicosmo.org/Articles/usercriteria.pdf.

       --cudf=FILENAME
	   Debug  option:  Save	 the  CUDF  requests  sent  to	the  solver to
	   FILENAME-<n>.cudf where <n> is the n-th call	to the	solver	during
	   the opam run.

       --debug
	   Print  debug	 message  to  stderr.  This  is	 equivalent to setting
	   $OPAMDEBUG to "true".

       --debug-level=LEVEL
	   Like	--debug, but allows specifying the debug level	(--debug  sets
	   it to 1). Equivalent	to setting $OPAMDEBUG to a positive integer.

       --git-version
	   Print  the  git  version  of	 opam,	if  set	 (i.e. you are using a
	   development version), and exit.

       --help[=FMT] (default=auto)
	   Show	this help in format FMT. The value FMT must be	one  of	 auto,
	   pager,  groff  or  plain.  With  auto, the format is	pager or plain
	   whenever the	TERM env var is	dumb or	undefined.

       --ignore-pin-depends
	   Ignore extra	pins required by  packages  that  get  pinned,	either
	   manually  through  opam  pin	 or  through opam install DIR. This is
	   equivalent to setting IGNOREPINDEPENDS=true.

       --json=FILENAME
	   Save	the results of the opam	run in a  computer-readable  file.  If
	   the	filename contains the character	`%', it	will be	replaced by an
	   index that doesn't overwrite	an existing file. Similar  to  setting
	   the $OPAMJSON variable.

       --no
	   Answer  no to all opam yes/no questions without prompting. See also
	   --confirm-level. This is equivalent to setting $OPAMNO to "true".

       --no-aspcud
	   Removed in 2.1.

       --no-auto-upgrade
	   When	configuring or updating	a repository that is  written  for  an
	   earlier  opam  version  (1.2),  opam	 internally converts it	to the
	   current  format.  This   disables   this   behaviour.   Note	  that
	   repositories	should define their format version in a	'repo' file at
	   their  root,	 or they will be assumed to be in the older format. It
	   is, in any case, preferable to upgrade  the	repositories  manually
	   using opam admin upgrade [--mirror URL] when	possible.

       --no-self-upgrade
	   Opam	will replace itself with a newer binary	found at OPAMROOT/opam
	   if present. This disables this behaviour.

       -q, --quiet
	   Disables --verbose.

       --root=ROOT
	   Use	ROOT  as  the current root path. This is equivalent to setting
	   $OPAMROOT to	ROOT.

       --safe, --readonly
	   Make	sure nothing  will  be	automatically  updated	or  rewritten.
	   Useful  for calling from completion scripts,	for example. Will fail
	   whenever such an operation is needed	 ;  also  avoids  waiting  for
	   locks,  skips  interactive  questions  and overrides	the $OPAMDEBUG
	   variable. This is equivalent	to set environment variable $OPAMSAFE.

       --solver=CMD
	   Specify the CUDF solver to use for resolving	 package  installation
	   problems.  This is either a predefined solver (this version of opam
	   supports	      builtin-mccs+lp(),	    builtin-mccs+glpk,
	   builtin-dummy-z3-solver,	builtin-0install,     aspcud,	 mccs,
	   aspcud-old, packup),	or a custom command that  should  contain  the
	   variables   %{input}%,  %{output}%,	%{criteria}%,  and  optionally
	   %{timeout}%.	This is	equivalent to setting $OPAMEXTERNALSOLVER.

       --strict
	   Fail	whenever an error is  found  in	 a  package  definition	 or  a
	   configuration   file.  The  default	is  to	continue  silently  if
	   possible.

       --switch=SWITCH
	   Use SWITCH as the current compiler switch. This  is	equivalent  to
	   setting $OPAMSWITCH to SWITCH.

       --use-internal-solver
	   Disable  any	 external  solver,  and	 use  the  built-in  one (this
	   requires that opam has been compiled	with a built-in	solver).  This
	   is equivalent to setting $OPAMNOASPCUD or $OPAMUSEINTERNALSOLVER.

       -v, --verbose
	   Be  more verbose. One -v shows all package commands,	repeat to also
	   display commands called internally (e.g.  tar,  curl,  patch	 etc.)
	   Repeating n times is	equivalent to setting $OPAMVERBOSE to "n".

       --version
	   Show	version	information.

       -w, --working-dir
	   Whenever   updating	 packages   that   are	 bound	 to  a	local,
	   version-controlled directory, update	to the current	working	 state
	   of  their  source  instead  of the last committed state, or the ref
	   they	are pointing to. As source directory is	copied as it is, if it
	   isn't clean it may result  on  a  opam  build  failure.  This  only
	   affects packages explicitly listed on the command-line. It can also
	   be set with $OPAMWORKINGDIR.

       -y, --yes
	   Answer yes to all opam yes/no questions without prompting. See also
	   --confirm-level. This is equivalent to setting $OPAMYES to "true".

ENVIRONMENT
       Opam  makes  use	 of  the  environment  variables  listed here. Boolean
       variables should	be set to "0", "no", "false" or	the  empty  string  to
       disable,	"1", "yes" or "true" to	enable.

       OPAMALLPARENS surround all filters with parenthesis.

       OPAMASSUMEDEPEXTS see option `--assume-depexts'.

       OPAMAUTOREMOVE see remove option	`--auto-remove'.

       OPAMBESTEFFORT see option `--best-effort'.

       OPAMBESTEFFORTPREFIXCRITERIA  sets the string that must be prepended to
       the criteria when the `--best-effort' option is set, and	is expected to
       maximise	the `opam-query' property in the solution.

       OPAMBUILDDOC Removed in 2.1.

       OPAMBUILDTEST Removed in	2.1.

       OPAMCLI see option `--cli'.

       OPAMCOLOR when set to always or never, sets a  default  value  for  the
       `--color' option.

       OPAMCONFIRMLEVEL	 see  option  `--confirm-level`.  OPAMCONFIRMLEVEL has
       priority	over OPAMYES and OPAMNO.

       OPAMCRITERIA specifies user preferences	for  dependency	 solving.  The
       default	value  depends	on  the	solver version,	use `config report' to
       know the	current	setting. See also option --criteria.

       OPAMCUDFFILE save the cudf graph	to file-actions-explicit.dot.

       OPAMCUDFTRIM controls the filtering of unrelated	packages  during  CUDF
       preprocessing.

       OPAMCURL	 can  be  used to select a given 'curl'	program. See OPAMFETCH
       for more	options.

       OPAMDEBUG see options `--debug' and `--debug-level'.

       OPAMDEBUGSECTIONS if set, limits	debug messages to the  space-separated
       list  of	 sections. Sections can	optionally have	a specific debug level
       (for  example,  CLIENT:2	 or  CLIENT   CUDF:2),	 but   otherwise   use
       `--debug-level'.

       OPAMDIGDEPTH  defines  how  aggressive  the lookup for conflicts	during
       CUDF preprocessing is.

       OPAMDOWNLOADJOBS	sets the maximum number	of simultaneous	downloads.

       OPAMDROPWORKINGDIR   overrides	packages   previously	updated	  with
       --working-dir  on  update.  Without  this variable set, opam would keep
       them unchanged unless explicitly	named on the command-line.

       OPAMDRYRUN see option `--dry-run'.

       OPAMEDITOR sets the editor to use  for  opam  file  editing,  overrides
       $EDITOR and $VISUAL.

       OPAMERRLOGLEN  sets  the	number of log lines printed when a sub-process
       fails. 0	to print all.

       OPAMEXTERNALSOLVER see option `--solver'.

       OPAMFAKE	see option `--fake'.

       OPAMFETCH specifies how to download files: either `wget', `curl'	 or  a
       custom	command	  where	  variables   %{url}%,	 %{out}%,   %{retry}%,
       %{compress}%  and  %{checksum}%	will  be   replaced.   Overrides   the
       'download-command' value	from the main config file.

       OPAMFIXUPCRITERIA  same	as  OPAMUPGRADECRITERIA, but specific to fixup
       and reinstall.

       OPAMIGNORECONSTRAINTS see install option	`--ignore-constraints-on'.

       OPAMIGNOREPINDEPENDS see	option `--ignore-pin-depends'.

       OPAMINPLACEBUILD	see option `--inplace-build'.

       OPAMJOBS	sets the maximum number	of parallel workers to run.

       OPAMJSON	log json output	to the given file (use character `%' to	 index
       the files).

       OPAMKEEPBUILDDIR	see install option `--keep-build-dir'.

       OPAMKEEPLOGS  tells  opam to not	remove some temporary command logs and
       some backups. This skips	some finalisers	and may	also help to get  more
       reliable	backtraces.

       OPAMLOCKED combination of `--locked' and	`--lock-suffix'	options.

       OPAMLOGS	logdir sets log	directory, default is a	temporary directory in
       /tmp

       OPAMMAKECMD set the system make command to use.

       OPAMMERGEOUT merge process outputs, stderr on stdout.

       OPAMNO  answer  no  to  any  question  asked,  see  options  `--no` and
       `--confirm-level`. OPAMNO is  ignored  if  either  OPAMCONFIRMLEVEL  or
       OPAMYES is set.

       OPAMNOAGGREGATE with `opam admin	check',	don't aggregate	packages.

       OPAMNOASPCUD Deprecated.

       OPAMNOAUTOUPGRADE  disables  automatic internal upgrade of repositories
       in an earlier format to the current one,	on 'update' or 'init'.

       OPAMNOCHECKSUMS enables option --no-checksums when available.

       OPAMNODEPEXTS  disables	system	dependencies  handling,	  see	option
       `--no-depexts'.

       OPAMNOENVNOTICE Internal.

       OPAMNOSELFUPGRADE see option `--no-self-upgrade'

       OPAMPINKINDAUTO sets whether version control systems should be detected
       when pinning to a local path. Enabled by	default	since 1.3.0.

       OPAMPRECISETRACKING fine	grain tracking of directories.

       OPAMPREPRO  set	this  to  false	 to  disable  CUDF preprocessing. Less
       efficient, but might help debugging solver issue.

       OPAMREPOSITORYTARRING  internally  store	 the  repositories  as	tar.gz
       files. This can be much faster on filesystems that don't	cope well with
       scanning	 large	trees  but  have good caching in /tmp. However this is
       slower in the general case.

       OPAMREQUIRECHECKSUMS   Enables	option	 `--require-checksums'	  when
       available (e.g. for `opam install').

       OPAMRETRIES sets	the number of tries before failing downloads.

       OPAMREUSEBUILDDIR see option `--reuse-build-dir'.

       OPAMROOT	 see  option  `--root'.	This is	automatically set by `opam env
       --root=DIR --set-root'.

       OPAMROOTISOK don't complain when	running	as root.

       OPAMSAFE	see option `--safe'.

       OPAMSHOW	see option `--show'.

       OPAMSKIPUPDATE see option `--skip-updates'.

       OPAMSKIPVERSIONCHECKS  bypasses	some  version  checks.	 Unsafe,   for
       compatibility testing only.

       OPAMSOLVERALLOWSUBOPTIMAL (default `true') allows some solvers to still
       return  a  solution when	they reach timeout; while the solution remains
       assured to be consistent, there is no guarantee in this	case  that  it
       fits  the  expected optimisation	criteria. If `true', opam willcontinue
       with a warning, if `false' a timeout is an error.  Currently  only  the
       builtin-z3 backend handles this degraded	case.

       OPAMSOLVERTIMEOUT  change  the time allowance of	the solver. Default is
       60.0, set to 0 for unlimited. Note that all  solvers  may  not  support
       this option.

       OPAMSTATS display stats at the end of command.

       OPAMSTATUSLINE  display	a dynamic status line showing what's currently
       going on	on the terminal. (one of one of	always,	never or auto)

       OPAMSTRICT fail on inconsistencies (file	reading, switch	import,	etc.).

       OPAMSWITCH see  option  `--switch'.  Automatically  set	by  `opam  env
       --switch=SWITCH --set-switch'.

       OPAMUNLOCKBASE see install option `--unlock-base'.

       OPAMUPGRADECRITERIA  specifies  user preferences	for dependency solving
       when performing an upgrade. Overrides OPAMCRITERIA in upgrades if  both
       are set.	See also option	--criteria.

       OPAMUSEINTERNALSOLVER see option	`--use-internal-solver'.

       OPAMUSEOPENSSL Removed in 2.2.

       OPAMUTF8	 use UTF8 characters in	output (one of one of always, never or
       auto). By default `auto', which is determined from the locale).

       OPAMUTF8MSGS use	extended UTF8 characters (camels)  in  opam  messages.
       Implies OPAMUTF8. This is set by	default	on macOS only.

       OPAMVALIDATIONHOOK  if  set, uses the `%{hook%}'	command	to validate an
       opam repository update.

       OPAMVERBOSE see option `--verbose'.

       OPAMVERBOSEON see option	--verbose-on

       OPAMVERSIONLAGPOWER do not use.

       OPAMWITHDEVSETUP	see install option `--with-dev-setup'.

       OPAMWITHDOC see install option `--with-doc'.

       OPAMWITHTEST see	install	option `--with-test.

       OPAMWORKINGDIR see option `--working-dir'.

       OPAMYES see options `--yes' and `--confirm-level`. OPAMYES has priority
       over OPAMNO and is ignored if OPAMCONFIRMLEVEL is set.

       OPAMVAR_var  overrides  the  contents  of   the	 variable   var	  when
       substituting `%{var}%` strings in `opam`	files.

       OPAMVAR_package_var  overrides the contents of the variable package:var
       when substituting `%{package:var}%` strings in `opam` files.

CLI VERSION
       All scripts and programmatic invocations	of opam	should use `--cli'  in
       order  to  ensure that they work	seamlessly with	future versions	of the
       opam client.  Additionally,  blog  posts	 or  other  documentation  can
       benefit,	as it prevents information from	becoming stale.

       Although	 opam  only supports roots (~/.opam/) for the current version,
       it does provide backwards compatibility for its command-line interface.

       Since CLI version support was only added	in opam	2.1,  use  OPAMCLI  to
       select  2.0  support (as	opam 2.0 will just ignore it), and `--cli=2.1'
       for 2.1 (or later) versions, since an environment variable  controlling
       the  parsing of syntax is brittle. To this end, opam displays a warning
       if OPAMCLI specifies a valid  version  other  than  2.0,	 and  also  if
       `--cli=2.0' is specified.

       The command-line	version	is selected by using the `--cli' option	or the
       OPAMCLI	environment  variable. `--cli' may be specified	morethan once,
       where the last instance takes precedence. OPAMCLI is only inspected  if
       `--cli' is not given.

EXIT STATUS
       As an exception to the following, the `exec' command returns 127	if the
       command	was  not found or couldn't be executed,	and the	command's exit
       value otherwise.

       0   Success, or true for	boolean	queries.

       1   False. Returned when	a boolean return value is expected, e.g.  when
	   running with	--check, or for	queries	like opam lint.

       2   Bad	command-line  arguments, or command-line arguments pointing to
	   an invalid context (e.g. file not following the expected format).

       5   Not found. You requested something (package,	 version,  repository,
	   etc.) that couldn't be found.

       10  Aborted. The	operation required confirmation, which wasn't given.

       15  Could not acquire the locks required	for the	operation.

       20  There  is  no  solution  to the user	request. This can be caused by
	   asking to install two incompatible packages,	for example.

       30  Error  in  package  definition,  or	other  metadata	 files.	 Using
	   --strict raises this	error more often.

       31  Package  script  error.  Some package operations were unsuccessful.
	   This	may be an error	in the packages	 or  an	 incompatibility  with
	   your	system.	This can be a partial error.

       40  Sync	error. Could not fetch some remotes from the network. This can
	   be a	partial	error.

       50  Configuration  error.  Opam	or  system configuration doesn't allow
	   operation, and needs	fixing.

       60  Solver failure. The solver failed to	return a sound answer. It  can
	   be  due  to	a  broken  external  solver,  or  an  error  in	solver
	   configuration.

       99  Internal error. Something went wrong, likely	due to a bug  in  opam
	   itself.

       130 User	 interrupt.  SIGINT  was  received,  generally due to the user
	   pressing Ctrl-C.

       0   on success.

       123 on indiscriminate errors reported on	standard error.

       124 on command line parsing errors.

       125 on unexpected internal errors (bugs).

FURTHER	DOCUMENTATION
       See https://opam.ocaml.org/doc.

AUTHORS
       David Allsopp <david@tarides.com>
       Vincent Bernardoff <vb@luminar.eu.org>
       Raja Boujbel <raja.boujbel@ocamlpro.com>
       Kate Deplaix <kit-ty-kate@outlook.com>
       Roberto Di Cosmo	<roberto@dicosmo.org>
       Thomas Gazagnaire <thomas@gazagnaire.org>
       Louis Gesbert <louis.gesbert@ocamlpro.com>
       Fabrice Le Fessant <Fabrice.Le_fessant@inria.fr>
       Anil Madhavapeddy <anil@recoil.org>
       Guillem Rieu <guillem.rieu@ocamlpro.com>
       Ralf Treinen <ralf.treinen@pps.jussieu.fr>
       Frederic	Tuong <tuong@users.gforge.inria.fr>

SEE ALSO
       opam(1)

BUGS
       Check bug reports at https://github.com/ocaml/opam/issues.

Opam 2.3.0							  OPAM-LIST(1)

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