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TABLE(1)			  User Commands 			TABLE(1)

NAME
     Table - read and write ASCII and FITS tables

SYNOPSIS
     asttable [OPTION...] ASTRdata

DESCRIPTION
     Table  is	part of GNU Astronomy Utilities 0.24.  Table can be used to view
     the information, select columns, or convert tables.  The inputs and outputs
     can be plain text (with white-space or comma as delimiters), FITS ascii, or
     FITS binary tables. The output columns can either	be  selected  by  number
     (counting	from  1), name or using regular expressions. For regular expres-
     sions, enclose the value to the '--column' ('-c') option in  slashes  ('\',
     as in '-c\^mag\'). To print the selected columns on the command-line, don't
     specify an output file.

     For more information, please run any of the following commands. In particu-
     lar the second contains a very comprehensive explanation of Table's invoca-
     tion:  expected  input(s), output(s), and a full description of all the op-
     tions.

     All options and their values:
	    $ asttable -P

     Inputs/Outputs and options:
	    $ info asttable

     Full section in manual/book:
	    $ info Table

     Full Gnuastro manual/book:
	    $ info gnuastro

     If you couldn't find your answer in the manual, you  can  get  direct  help
     from  experienced	Gnuastro  users  and  developers.  For more information,
     please run:

	    $ info help-gnuastro

     Table options:

	    Input:

     -b, --noblank=STR[,STR]
	    Remove rows with blank in given columns.

     -c, --column=STR
	    Column number (counting from 1) or search string.

     -C, --catcolumns=STR
	    Columns to use in --catcolumnfile.

     -E, --noblankend=STR[,STR] Sim. to --noblank, at end (e.g., after arith.).

     -h, --hdu=STR/INT
	    Extension name or number of input data.

     --inpolygon=STR,STR
	    Coord. columns that are inside '--polygon'.

     -I, --ignorecase
	    Ignore case in matching/searching columns.

     -L, --catcolumnfile=FITS/TXT
	    File(s) to be concatenated by column.

     --outpolygon=STR,STR
	    Coord. columns that are outside '--polygon'.

     -R, --catrowfile=FITS/TXT
	    File(s) to be concatenated by row.

     --searchin=STR
	    Select column(s): 'name', 'unit', 'comment'.

     --stdintimeout=INT
	    Micro-seconds to wait for standard input.

     -u, --catcolumnhdu=STR/INT HDU/Extension(s) in catcolumnfile.

     -w, --wcsfile=FITS
	    File with WCS if conversion is requested.

     -W, --wcshdu=STR
	    HDU in file with WCS for conversion.

     -X, --catrowhdu=STR/INT
	    HDU/Extension(s) in --catrowfile.

	    Output:

     -A, --txtf64format=STR
	    Text output float64 format: 'fixed' or 'exp'.

     -B, --txtf64precision=INT
	    Text output float64 precision.

     -D, --dontdelete
	    Don't delete output if it exists.

     -f, --txtf32format=STR
	    Text output float32 format: 'fixed' or 'exp'.

     --info-num-cols
	    Only print input table's number of columns.

     --info-num-rows
	    Only print input table's number of rows.

     -i, --information
	    Only print input table's information.

     -K, --keepinputdir
	    Keep input directory for automatic output.

     --outfitsnocommit
	    No Git commit in 0-th HDU of output FITS.

     --outfitsnoconfig
	    No metadata in 0-th HDU of output FITS.

     --outfitsnodate
	    No 'DATE' in 0-th HDU of output FITS.

     --outfitsnoversions
	    No versions in 0-th HDU of output FITS.

     -o, --output=STR
	    Output file name.

     -O, --colinfoinstdout
	    Column info/metadata when printing to stdout.

     -p, --txtf32precision=INT
	    Text output float32 precision.

     --tableformat=STR
	    Table fmt: 'fits-ascii', 'fits-binary', 'txt'.

     --wcslinearmatrix=STR
	    WCS linear matrix of output ('pc' or 'cd').

     -Y, --txteasy
	    Short for '-Afixed -B6 -ffixed -p3'.

	    Precedence (default: column operations first)

     --rowfirst
	    Apply row-based operations first.

	    Columns in output:

     --catcolumnrawname
	    Don't touch column names of --catcolumnfile.

     --fromvector=STR,INT[,INT]
	    Extract column(s) from a vector column.

     -k, --keepvectfin
	    Keep inputs of '--tovector' & '--fromvector'.

     -m, --colmetadata=ID,S,S,S Column metadata (S=STR: Name, Unit, Comments).

     --tovector=STR,STR[,STR]
	    Merge column(s) into a vector column.

     --transpose
	    Transpose table (must only contain vector cols).

	    Rows in output:

     -d, --descending
	    Sort in descending order: largets first.

     --envseed
	    Use GSL_RNG_SEED env. for '--rowrandom'.

     -e, --equal=STR,FLT[,...]
	    Column, values to keep in output.

     -H, --head=INT
	    Only return given number of top rows.

     -n, --notequal=STR,FLT[,...]
	    Column, values to remove from output.

     --polygon=FLT,FLT[:...]
	    Polygon vertices, also a DS9 region file.

     --rowrandom=INT
	    Number of rows to select randomly.

     --rowrange=INT,INT
	    Only rows in this row-counter range.

     -r, --range=STR,FLT:FLT
	    Column, and range to limit output.

     -s, --sort=STR/INT
	    Column name or number for sorting.

     -t, --tail=INT
	    Only return given number of bottom rows.

	    Operating modes:

     -?, --help
	    give this help list

     --checkconfig
	    List all config files and variables read.

     --cite
	    BibTeX citation for this program.

     --config=STR
	    Read configuration file STR immediately.

     --config-prefix=STR
	    Custom prefix of option names config files.

     --lastconfig
	    Do not parse any more configuration files.

     --log  Information about output(s) in a log file.

     --minmapsize=INT
	    Min. bytes to avoid RAM automatically.

     -N, --numthreads=INT
	    Number of CPU threads to use.

     --onlyversion=STR
	    Only run if the program version is STR.

     -P, --printparams
	    Print parameter values to be used and abort.

     --quietmmap
	    Don't print mmap'd file's name and size.

     -q, --quiet
	    Only report errors, remain quiet about steps.

     -S, --setdirconf
	    Set default values for this directory and abort.

     --usage
	    give a short usage message

     -U, --setusrconf
	    Set default values for this user and abort.

     -V, --version
	    print program version

     Mandatory or optional arguments to long options are also mandatory  or  op-
     tional for any corresponding short options.

     GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/

REPORTING BUGS
     Report bugs to bug-gnuastro@gnu.org.

COPYRIGHT
     Copyright (C) 2015-2025 Free Software Foundation, Inc.  License GPLv3+: GNU
     General public license version 3 or later.
     This  is  free software: you are free to change and redistribute it.  There
     is NO WARRANTY, to the extent permitted by law.

     Written/developed by Mohammad Akhlaghi

SEE ALSO
     The full documentation for Table is maintained as a Texinfo manual.  If the
     info and Table programs are properly installed at your site, the command

	    info Table

     should give you access to the complete manual.

GNU Astronomy Utilities 0.24	  November 2025 			TABLE(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=asttable&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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