今天干了件超级没脑的事，
在/etc/profile加了source /etc/profile,
还在外面执行了source /etc/profile
结果就成了下面这样的了，执行所有命令都说rgument list too long
[root@localhost etc]# source profile
bash: /usr/bin/id: Argument list too long
bash: /usr/libexec/grepconf.sh: Argument list too long
bash: /usr/bin/tty: Argument list too long
bash: /usr/bin/id: Argument list too long
bash: /usr/libexec/grepconf.sh: Argument list too long
bash: /usr/bin/tty: Argument list too long
bash: /usr/bin/id: Argument list too long
bash: /usr/libexec/grepconf.sh: Argument list too long
bash: /usr/bin/tty: Argument list too long
bash: /usr/bin/id: Argument list too long
bash: /usr/libexec/grepconf.sh: Argument list too long
bash: /usr/bin/tty: Argument list too long
bash: /usr/bin/id: Argument list too long
bash: /usr/libexec/grepconf.sh: Argument list too long
bash: /usr/bin/tty: Argument list too long
