cheat-fork-echo/cheat/cheatsheets/sed
Chris Lane 6b8ecd6b5c Cherry-picking changes from #185
@zhujian0805 contributed some excellent cheatsheets in #185, but some
binary files seem to have gotten mixed into the commit as well. This
commit cherry-picks the cheatsheet file changes from that PR while
leaving behind the cruft.

Also performed minor editing on some of the cheatsheets.
2014-10-19 11:43:43 -04:00

18 lines
516 B
Plaintext

# To replace all occurrences of "day" with "night" and write to stdout:
sed 's/day/night/g' file.txt
# To replace all occurrences of "day" with "night" within file.txt:
sed -i 's/day/night/g' file.txt
# To replace all occurrences of "day" with "night" on stdin:
echo 'It is daytime' | sed 's/day/night/g'
# To remove leading spaces
sed -i -r 's/^\s+//g' file.txt
# To remove empty lines and print results to stdout:
sed '/^$/d' file.txt
# To replace newlines in multiple lines
sed ':a;N;$!ba;s/\n//g' file.txt