Comments on: Use Ruby to Prefix all lines /Postfix all lines/Remove empty lines/Replace strings in all lines of a file

By: Follow up to the Use Ruby to Prefix all lines /Postfix all lines/Remove empty lines/Replace strings in all lines of a file « Devender’s Weblog

Sun, 17 Dec 2006 20:21:10 +0000

[...] Comments (RSS) « Use Ruby to Prefix all lines /Postfix all lines/Remove empty lines/Replace strings in all lines of a file [...]

Rong Ou — Sat, 16 Dec 2006 08:44:24 +0000

Damn, it ate all my redirects. Here is it again:

prefix:
sed ’s/^.*$/prefix(&)/’ < inputfile > outputfile

suffix:
sed ’s/^.*$/(&)suffix/’ < inputfile > outputfile

remove blank lines:
sed ‘/^$/ d’ < inputfile > outputfile

replace strings:
sed ’s/old/new/’ < inputfile > outputfile

Rong Ou — Sat, 16 Dec 2006 08:41:58 +0000

prefix:
sed ’s/^.*$/prefix(&)/’ outputfile

suffix:
sed ’s/^.*$/(&)suffix/’ outputfile

remove blank lines:
sed ‘/^$/ d’ outputfile

replace strings:
sed ’s/old/new/’ outputfile