I am facing one issue while using replace in my sed command. I've a file named a.txt, I want to replace a single line with some other line but I am getting above mentioned error.
Code I want to replace:
DOMAIN_LOCAL = "http://127.0.0.1:3000";
I want it to replace with any other ip lets say something like below:-
DOMAIN_LOCAL = "http://127.1.1.2:3000";
What I've tried:-
ip=http://127.1.1.2:3000
sed "s/DOMAIN_LOCAL = .*$/DOMAIN_LOCAL = "$ip";/g" a.txt
But it is giving me following error. Can somebody help here.
sed: 1: "s/DOMAIN_LOCAL = .*$/DO ...": bad flag in substitute command: '/'
You will need to use another delimiter. And escape the $ or use single quotes:
% ip="http://127.1.1.2:3000"
% sed 's~DOMAIN_LOCAL = .*$~DOMAIN_LOCAL = "'"$ip"'";~' a.txt
DOMAIN_LOCAL = http://127.1.1.2:3000;
When you use / as a delimiter in the substitute command it will be terminated at the first slash in http://:
sed 's/DOMAIN_LOCAL = .*$/DOMAIN_LOCAL = http://127.1.1.2:3000;/'
# ^ here
Breakdown:
sed 's~DOMAIN_LOCAL = .*$~DOMAIN_LOCAL = "'"$ip"'";~' a.txt
# │ ││└ Use double quotes to avoid word splitting and
# │ ││ globbing on $ip
# │ │└ Exit single quotes
# │ └ Literal double quotes
# └ Using single quotes to avoid having to escape special characters
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments