리눅스 sed 여러 줄로 치환

1 개요

Sed 여러줄로 치환

root@localhost:~# cat mykey.pem
-----BEGIN RSA PRIVATE KEY-----
MIICXAIBAAKBgQDTDhZpOuKlU5rBMhs7bF9TObe1wSCNsTJ/x3QmaU0ZPzjMXyNg
Bcwfu7Yp9e13Ia/abB5fEB8UR0GYrqgs2LLjdmb/RE4=
-----END RSA PRIVATE KEY-----

root@localhost:~# cat template.txt
HELLO
{{KEY}}
WORLD

root@localhost:~# mykey=$(cat mykey.pem | sed ':a;N;$!ba;s|\n|\\n|g' | sed 's|/|\\/|g' )
root@localhost:~# sed "s/{{KEY}}/$mykey/" template.txt
HELLO
-----BEGIN RSA PRIVATE KEY-----
MIICXAIBAAKBgQDTDhZpOuKlU5rBMhs7bF9TObe1wSCNsTJ/x3QmaU0ZPzjMXyNg
Bcwfu7Yp9e13Ia/abB5fEB8UR0GYrqgs2LLjdmb/RE4=
-----END RSA PRIVATE KEY-----
WORLD

2 참고

• https://stackoverflow.com/questions/1251999/how-can-i-replace-a-newline-n-using-sed