NAME

chgrep - change oldpattern to newpattern

SYNOPSIS

chgrep [-en/w] [-dhilqrsv] [-t filename] OLDPATTERN NEWPATTERN [file...]

DESCRIPTION

Chgrep searches the input files (or standard input if no files are named) for oldstring and changes them to newstring. If some file and file.lock exist then chgrep leaves both files unchanged. You can write NEWPATTERN as "NULL" to clear OLDPATTERN, i.e. "chgrep oldstring NULL somefile.c".

-d: Don't change modification times of altered files.
-e: Extended-regexp.
-h: Print the version number of chgrep to standard output. This version number should be included in all bug reports (see below).
-i: Ignore differences in case at OLDPATTERN.
-l: Leaves copy of old file unchanged in filename.lock
-n: Treat <newline> as a regular character.
-q: Quiet mode (no output at all).
-r: Read all files under each subdirectory, recursively.
-s: Simulation mode.
-t: Use not default file.lock for caching.
-v: Prints to standard output diagnostic informations.
-w: Doesn't recognize regexp in OLDPATTERN. This option accelerates the whole process. Incompatible with -e and/or -n.

DIAGNOSTICS

Normally, exit status is 0 if no errors were found, and 1 if some errors were found. The -v option helps to understand the sense of the exit status.

BUGS

Email bug reports to bartek@bmk.bz. Be sure to include the word “chgrep” somewhere in the “Subject:” field.