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bash noop command

Posted on 2019-01-20 Edited on 2020-12-07 In GNU/Linux

bash的内建命令":",类似于x86的nop机器指令,或者python的pass语句,其返回值为0

References:
[1]4.1 Bourne Shell Builtins

# Bash
使用acme.sh自动部署Let’s Encrypt证书
ssh remote execute with backquote/backtick operator
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