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 vote132 views1 answer
How to remove go in ubuntu
Shell/Bash
0 vote140 views1 answer
Mountebank docker quick start
Shell/Bash
3 votes131 views1 answer
Cmake version comand
Shell/Bash
31 votes169 views6 answers
Remove directory linux
Shell/Bash
0 vote138 views1 answer
Install lerna on Linux
Shell/Bash
4 votes128 views1 answer
Extract from tar gz into folder
Shell/Bash
9 votes146 views3 answers
Git add commit in one command
Shell/Bash
0 vote112 views1 answer
Vue search npm
Shell/Bash
0 vote574 views1 answer
Sticky notes for Linux(Ubuntu)
Shell/Bash
0 vote134 views1 answer
Bash linux scripting laguage
Shell/Bash