readdir - directory input parser for gawk
@load "readdir"
READDIR(3) GNU Awk Extension Modules READDIR(3) NAME readdir - directory input parser for gawk SYNOPSIS @load "readdir" DESCRIPTION The readdir extension adds an input parser for directories. When this extension is in use, instead of skipping directories named on the command line (or with getline), they are read, with each entry returned as a record. The record consists of three fields. The first two are the inode number and the filename, separated by a forward slash character. On systems where the directory entry contains the file type, the record has a third field which is a single letter indicating the type of the file: f for file, d for directory, b for a block device, c for a character device, p for a FIFO, l for a symbolic link, s for a socket. On systems without the file type information, the extension falls back to calling stat(2), in order to provide the information. Thus the third field should never be u. By default, if a directory cannot be opened (due to permission prob- lems, for example), gawk will exit. As with regular files, this situa- tion can be handled using a BEGINFILE rule that checks ERRNO and prints an error or otherwise handles the problem. EXAMPLE @load "readdir" ... BEGIN { FS = "/" } { print "file name is", $2 } ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | text/gawk | +---------------+------------------+ |Stability | Volatile | +---------------+------------------+ SEE ALSO GAWK: Effective AWK Programming, filefuncs(3), fnmatch(3), fork(3), inplace(3), ordchr(3), readfile(3), revoutput(3), rwarray(3), time(3). opendir(3), readdir(3), stat(2). AUTHOR Arnold Robbins, arnold@skeeve.com. COPYING PERMISSIONS Copyright (C) 2012, 2013, 2018, 2019 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. NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://ftp.gnu.org/gnu/gawk/gawk-5.1.1.tar.xz. Further information about this software can be found on the open source community website at https://www.gnu.org/software/gawk. Free Software Foundation Oct 30 2019 READDIR(3)