More than 5 years have passed since last update.

sedで最終行に挿入

Posted at 2016-04-08

Dockerfile内で最終行に文字を挿入したくなった。

参考

Sed Command in Linux - Append and Insert Lines to a File ~ Your Own Linux..!

最終行に挿入

$ sed -e '$ a hoge' sources.list.bak 
deb http://httpredir.debian.org/debian stretch main
deb http://httpredir.debian.org/debian stretch-updates main
deb http://security.debian.org stretch/updates main
hoge

最終行の一行前に挿入

$ sed -e '$ i hoge' sources.list.bak 
deb http://httpredir.debian.org/debian stretch main
deb http://httpredir.debian.org/debian stretch-updates main
hoge
deb http://security.debian.org stretch/updates main

任意の行に挿入

$ sed -e '2i hoge' sources.list.bak 
deb http://httpredir.debian.org/debian stretch main
hoge
deb http://httpredir.debian.org/debian stretch-updates main
deb http://security.debian.org stretch/updates main

You get articles that match your needs
You can efficiently read back useful information
You can use dark theme

What you can do with signing up