Table of Contents

Sed

Sed

Delete Line in File

To delete line 7 of test.txt

sed -i 7d test.txt

Delete Line with Text

sed '/^WHOLELINEOFTEXT$/d' input.txt > output.txt

Append to All Lines

To add text to the end of each line in the file test.txt and put the result into test2.txt

sed 's/$/newtexttoaddon/g' test.txt > test2.txt

To Prepend to All Lines

To add text to the start of each line in the file test.txt and put the result into test2.txt

sed 's/^./newtexttoaddon/g' test.txt > test2.txt