讨论数量:
运行了一次,感觉是些基本信息,应该不得哦
[gee@localhost root]$ CHECK_TYPE=SHELL; echo "INFO=${CHECK_TYPE} PID=$$ PPID=$PPID TTY=$(tty) SHELL=$0 HOME=$HOME PWD=$PWD| SHELL_END"
INFO=SHELL PID=6409 PPID=6408 TTY=/dev/pts/0 SHELL=bash HOME=/home/gee PWD=/root| SHELL_END
[root@localhost ~]# CHECK_TYPE=SHELL; echo "INFO=${CHECK_TYPE} PID=$$ PPID=$PPID TTY=$(tty) SHELL=$0 HOME=$HOME PWD=$PWD| SHELL_END"
INFO=SHELL PID=5294 PPID=5278 TTY=/dev/pts/0 SHELL=-bash HOME=/root PWD=/root| SHELL_END
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