Edit text in a scriptable manner. See also:
awk
,ed
. More information: https://www.gnu.org/software/sed/manual/sed.html.
apple
(basic regex) occurrences with mango
(basic regex) in all input lines and print the result to stdout
:command | sed 's/apple/mango/g'
apple
(extended regex) occurrences with APPLE
(extended regex) in all input lines and print the result to stdout
:command | sed -E 's/(apple)/\U\1/g'
apple
(basic regex) occurrences with mango
(basic regex) in a specific file and overwrite the original file in place:sed -i 's/apple/mango/g' path/to/file
stdout
:command | sed -f path/to/script.sed
stdout
:command | sed -n '1p'
sed -i 1d path/to/file
sed -i '1i\your new line text\' path/to/file