sed Commands Cheat Sheet

Find and Replace

sed 's/old/new/' file.txt
sed 's/old/new/g' file.txt
sed -i 's/old/new/g' file.txt

Delete Lines

sed '/pattern/d' file.txt
sed '1d' file.txt
sed '1,5d' file.txt

Print Lines

sed -n '1,10p' file.txt
sed -n '/pattern/p' file.txt