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READFILE(3am) GNU Awk Extension Modules READFILE(3am) NAME readfile - return the entire contents of a file as a string SYNOPSIS @load "readfile" result = readfile("/some/path") For making whole files be single records: @load "readfile" BEGIN { PROCINFO["readfile"] = 1 } DESCRIPTION The readfile extension adds a single function named readfile(). The argument is the name of the file to read. The return value is a string containing the entire contents of the requested file. Upon error, the function returns the empty string and sets ERRNO. In addition, it adds an input parser that is activated if PROCINFO["readfile"] exists. When activated, each input file is re- turned in its entirety as $0. RT is set to the null string. EXAMPLE @load "readfile" ... contents = readfile("/path/to/file"); if (contents == "" && ERRNO != "") { print("problem reading file", ERRNO) > "/dev/stderr" ... } SEE ALSO GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am), fork(3am), inplace(3am), ordchr(3am), readdir(3am), revoutput(3am), rwarray(3am), time(3am). AUTHOR Arnold Robbins, arnold@skeeve.com. COPYING PERMISSIONS Copyright (C) 2012, 2013, 2014, 2018, Free Software Foundation, Inc. Permission is granted to make and distribute verbatim copies of this manual page provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual page under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this man- ual page into another language, under the above conditions for modified versions, except that this permission notice may be stated in a trans- lation approved by the Foundation. Free Software Foundation Feb 02 2018 READFILE(3am)
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