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用户 useradd ftp 添加用户ftp userdel ftp 删除用户ftp passwd root 设置/更改用户root 密码 passwd [options] [LOGIN] Options: -a, --all report password status on all accounts -d, --delete delete the password for the named account -e, --expire force expire the password for the named account -h, --help display this help message and exit -k, --keep-tokens change password only if expired -i, --inactive INACTIVE set password inactive after expiration to INACTIVE -l, --lock lock the password of the named account -n, --mindays MIN_DAYS set minimum number of days before password change to MIN_DAYS -q, --quiet quiet mode -r, --repository REPOSITORY change password in REPOSITORY repository -S, --status report password status on the named account -u, --unlock unlock the password of the named account -w, --warndays WARN_DAYS set expiration warning days to WARN_DAYS -x, --maxdays MAX_DAYS set maximum number of days before passwordchange to MAX_DAYS 用户组 用户权限 chmod 777 filename 更改目录/文件操作权限 chown 更改目录/文件所有权 (责任编辑：IT) |