linux-xh53:~ # gpasswd tape
Changing the password for group tape.
New Password:
Re-enter new password:
$6$
Password changed.
tape:$6$bNBvTFttlkf2$C7F0fLLDmS/qVMgyTTn8tg6tfpYU5V5LRFRJD.DgNhYQcBNT44dkHoZbuhVOkV9cWfUfWMzNznR.cNNhmgYNQ.:101:
linux-xh53:~ # gpasswd -r tape
Password removed.
ls -al getgid
-rwxr-xr-x 1 beyes users 9805 Dec 24 20:59 getgid
./getgid
Process's gid = 101, egid = 101
Open failure, errno is 13:Permission denied
newgrp users
Password: #在这里输入组密码
./getgid
Process's gid = 100, egid = 100
Open successfully!
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