replace Utility


The replace utility program changes strings in place in files or on the standard input. Invoke replace in one of the following ways:

shell> replace from to [from to] ... -- file_name [file_name] ...
shell> replace from to [from to] ... < file_name

"from" represents a string to look for and "to" represents its replacement. There can be one or more pairs of strings.

A from-string can contain these special characters:

\^Match start of line.
\$Match end of line.
\bMatch space-character, start of line or end of line. For an end \b the next replace starts looking at the end space-character. A \b alone in a string matches only a space-character

Use the -- option to indicate where the string-replacement list ends and the file names begin. Any file named on the command line is modified in place, so you may want to make a copy of the original before converting it. replace prints a message indicating which of the input files it actually modifies.

If the -- option is not given, replace reads standard input and writes to standard output.

replace uses a finite state machine to match longer strings first. It can be used to swap strings. For example, the following command swaps "a" and "b" in the given files, /file1 and file2:

shell> replace a b b a -- file1 file2 ...

The replace program is used by msql2mysql.


replace supports the following options.

-?, -IDisplay a help message and exit.
-#debug_optionsEnable debugging.
-sSilent mode. Print less information about what the program does.
-vVerbose mode. Print more information about what the program does.
-VDisplay version information and exit.


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