perl -pe 's/a/b/g'will do the substitution on each line of input and spit it back out. And:
perl -i bak -pe 's/a/b/g' file1 file2....will do the same, except it will change the given files and back them up to file1.bak, etc, as it does so.
Monday, November 19, 2012
Perl Filters
A nice trick for easily writing Perl filters:
will do the substitution on each line of input and spit it back out. And:
will do the same, except it will change the given files and back them up to file1.bak, etc, as it does so.
will do the substitution on each line of input and spit it back out. And:
will do the same, except it will change the given files and back them up to file1.bak, etc, as it does so.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Comments welcome, but they are expected to be civil.
Please don't bother spamming me. I'm only going to delete it.