Whats The Correct Syntax to input the Own IP into an SED Command

Question

sed -i 's/# ListenIP=0.0.0.0/ListenIP=$[hostname -I]' /etc/some.conf

I need to Change the Listen Ip to its own IP, so what's the correct way of inserting hostname -I into the SED command?

score 0 · Accepted Answer · answered May 03 '22 at 08:59

0

Use command substitution $() to call a subshell:

sed -i "s/# ListenIP=0.0.0.0/ListenIP=$(hostname -I)/" /etc/some.conf

answered May 03 '22 at 08:59

0stone0

That's what I thought but it didn't work, but I wrote it with ' instead of " so that was my problem. Thanks. – user19022613 May 03 '22 at 11:53

1 Answers1