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@tukiyo3

sedで最終行に挿入

Posted at

Dockerfile内で最終行に文字を挿入したくなった。

参考

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
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