rrep - replace patterns in files.

       Written by Arno Onken.

       Copyright 2011, 2013, 2019, 2022 Arno Onken

       This is free software; see the source for copying  conditions.   There  is  NO  warranty;  not  even  for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

       The  rrep  utility  searches  input  FILEs for matches to a given PATTERN and replaces those matches by a
       given REPLACEMENT.  The pattern is, by default, a basic regular expression.  The replacement  string  may
       contain special characters to refer to portions of the matched pattern.

       Binary files are, by default, ignored.  A file is regarded as binary if it contains the null character.

       Exit status is 1 if any error occurs, 0 otherwise.

       rrep - replace patterns in files.

-E, --extended-regexpPATTERN is interpreted as an extended regular expression (ERE).

       -F, --fixed-stringsPATTERN  and  REPLACEMENT  are  interpreted as fixed strings, not as regular expressions or escape
              sequences.

       -R, -r, --recursive
              Each directory that is given on the  command  line  is  processed  recursively.   Files  and  sub-
              directories starting with the .  character are, by default, ignored.

       --include=FILE_PATTERN
              Only  files  are  processed  that  match  the  pattern  FILE_PATTERN,  except  for  files that are
              specifically given on the command line.  *, ?, and [...] can be used as wildcards in FILE_PATTERN.
              Wildcards and backslash characters can be quoted with \.

       --exclude=FILE_PATTERN
              Files that match the pattern FILE_PATTERN will be skipped, except for files that are  specifically
              given on the command line (using wildcard matching as described under --include).

       --exclude-dir=PATTERN
              Directories  that  match  PATTERN will be skipped, except for files that are specifically given on
              the command line (using wildcard matching as described under --include).

       -V, --version
              Print the version number of rrep.

       -SSUFFIX, --suffix=SUFFIX
              Override default backup suffix.  This option implicitly activates backups.

       -a, --all
              Files and sub-directories starting with the . character in recursively processed directories  (see
              --recursive) are processed as well.

       -b     Backup  before overwriting files.  The backup files are written into the directory of the original
              file.  Equivalent to using --backup=existing.

       --backup[=CONTROL]
              Like -b but accepts a version control argument.  The file name of the backup file is appended by a
              ~ character.  The backup suffix is ~, unless  set  with  --suffix  or  SIMPLE_BACKUP_SUFFIX.   The
              version  control  method  may  be  selected via the --backup option or through the VERSION_CONTROL
              environment variable. Here are the values:
                none, off       never make backups
                                (even if --backup is given)
                numbered, t     make numbered backups
                existing, nil   numbered if numbered backups exist, simple
                                otherwise
                simple, never   always make simple backups

       --binary
              Do not ignore binary files.  A file is regarded as binary if it contains the null character \0.

       --dry-run
              The replacement is just simulated.  No file is actually modified.

       -ePATTERN, --regexp=PATTERN
              Use PATTERN for matching.  This option can be used to specify a pattern beginning with -.

       -h, --help
              Display a help message that describes the command line options and exit afterwards.

       -i, --ignore-case
              Case distinctions in PATTERN are ignored.

       --keep-times
              The original access and modification times of files and directories are restored after processing.

       -pREPLACEMENT, --replace-with=REPLACEMENT
              Use REPLACEMENT for substitution.

       --interactive
              Each time before a file is modified the user is prompted and can cancel the modification.

       -q, --quiet, --silent
              All normal output messages are suppressed.

       -s, --no-messages
              All error messages are suppressed.

       -w, --word-regexp
              Only those matches of PATTERN are replaced that match whole words.

       -x, --line-regexp
              Only those matches of PATTERN are replaced that match whole lines.

       If you find a bug in rrep, please send electronic  mail  to  <asnelt@asnelt.org>.   Include  the  version
       number,  which  you can find by running rrep--version.  Also include in your message the output that the
       program produced and the output you expected.

       If you have other questions, comments or suggestions about rrep, contact the author via  electronic  mail
       to  <asnelt@asnelt.org>.   The author will try to help you out, although he may not have time to fix your
       problems.

RegularManualPagesfind(1), grep(1), sed(1), xargs(1), regex(7).

   TeXinfoDocumentation
       The  full  documentation  for  rrep is maintained as a TeXinfo manual.  If the info and rrep programs are
       properly installed at your site, the command

              inforrep

       should give you access to the complete manual.

User Commands                                      rrep 1.3.7                                            RREP(1)

rrep [OPTIONS] PATTERNREPLACEMENT [FILE...]