pesubst — perl-regexp stream substitution

       pesubst  can  substitute strings in streams and files, and does so by using the Perl engine. It obsoletes
       sed(1) for simple substitution tasks.

       Change all occurrences of foo (case-insensitive) to bar:

            pesubst -s foo -d bar -ms myfile

       Change all Shell-style comments into C++ ones:

            pesubst -s '^#' -d // -mm myfile

       Using both the "m" and "i" flags:

            pesubst -s '^#INCLUDE\s+' -d '#include ' -mmi myfile.c

e      Evaluate the right side as an expression.

       g      Replace globally, i.e., all occurrences. Thisisalwaysenabledinpesubst.i      Do case-insensitive pattern matching.

       m      Treat string as multiple lines. That is, change "^" and "$" from matching the start or end of  the
              string to matching the start or end of any line anywhere within the string.

       o      Compile pattern only once.

       s      Treat  string  as  single  line.  That  is,  change  "." to match any character whatsoever, even a
              newline, which normally it would not match.

       x      Extend your pattern's legibility by permitting whitespace and comments.

       pesubst — perl-regexp stream substitution

-f     Fill the replacement string with NULs to bring it up to the size of the original string.

       -spattern
              Source pattern to search for in files. This can be any valid Perl regular  expression.  Files  are
              slurped in as a whole, so matching across newlines should be no problem (with the -ms flag).

       -dpattern
              Destination  (replacement) string. This can be any valid string Perl accepts.  For details see the
              perlre(1) manpage.

       -mmodifiers
              A string of modifiers to apply to the regex. See below.

hxtools(7), pegrep(1)

hxtools                                            2008-02-06                                         pesubst(1)

pesubst [-f] [-spattern] [-dpattern] [-mmodifiers] file...