Shell executes three ways

View current Shell

Echo $SHELLgrep root/etc/passwd

Beginning:

#!/bin/bash#!/bin/shls-l/bin/sh

Shell types

Cat/etc/shells/etc/init.d/nfs/etc/init.d/crond/etc/init.d/rc.d/rc.sysinit

Bash--version

The shell performs three ways:

1,sh T.s or Shell t.s2,/server/scripts/t.sh or./t.sh3,source t.sh or. t.sh #可以将当前脚本中变量 function into the shell [[email protected] Scrip ts]# cat who.sh user= ' whoami ' [[email protected] scripts]# source who.sh && Echo $userroot

This article is from the "Lannyma" blog, make sure to keep this source http://lannyma.blog.51cto.com/4544390/1782340

Shell executes three ways