第2章 Shell解释器
第2章 Shell解释器
(1)Linux提供的Shell解释器有:
[ ~]# cat /etc/shells
/bin/sh
/bin/bash
/usr/bin/sh
/usr/bin/bash
/bin/tcsh
/bin/csh
(2)bash和sh的关系
[ ~]# ll /bin/sh
lrwxrwxrwx. 1 root root 4 5月  15 19:42 /bin/sh -> bash
(3)CentOS默认的解释器是bash
[ ~]# echo $SHELL
/bin/bash
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