Sed remove line containing

sed '/pattern to match/d' ./infile

Delete a line starting with sed

# Delete all lines starting with '#'
$ sed -i '/^#/d' filepath

Delete line in sed

# -i here update the file, try with and without -i, 
sed -i -e "/your_pattern/d" file 
sed -i -e "/your_pattern/,+2 d" file  # 2 lines after the pattern
sed -i -e '5,5d" file # remove 5th line

Sed delete line before match

Use d option at the end of sed command string for deleting line of matches.
tac | sed -i "" "s/matching_pattern/I+1 d" file.txt | tac #

Sed remove line

$ sed 's|http://||' <<EOL
http://url1.com
http://url2.com
http://url3.com
EOL

Source: catonmat.net

Similar codes

0 vote242 views1 answer
Install virtualmin
Shell/Bash
0 vote257 views1 answer
Linux find site dns
Shell/Bash
0 vote216 views1 answer
How to save history of commands in linux
Shell/Bash
1 vote245 views1 answer
Git get current commit
Shell/Bash
0 vote193 views1 answer
Debugging kubernete in intellij
Shell/Bash
0 vote229 views1 answer
Systemd stop service and start
Shell/Bash
0 vote241 views2 answers
Tail and watch directory linux
Shell/Bash
1 vote239 views1 answer
Lollypop music player install ubuntu
Shell/Bash
0 vote249 views1 answer
How to check everything inside every folder bash linux
Shell/Bash
0 vote227 views1 answer
Failed at the [email protected] install script
Shell/Bash