date: 2020-10-20T09:26:21+08:00 # 创建日期 author: "Rustle Karl" # 作者
title: "passwd 修改用户名密码" # 文章标题
url: "posts/linux/tools/standard/passwd" # 设置网页永久链接 tags: [ "linux", "cmd" ] # 标签 series: [ "Linux 学习笔记" ] # 系列 categories: [ "学习笔记" ] # 分类
weight: 20 # 排序优先级 chapter: false # 设置为章节
修改用户名密码
passwd [options] [LOGIN]| 参数 | 作用 |
|---|---|
| -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 |
| -R, --root CHROOT_DIR | directory to chroot into |
| -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 password change to MAX_DAYS |
| 参数 | 作用 |
|---|---|
| -k, --keep-tokens | keep non-expired authentication tokens |
| -d, --delete | delete the password for the named account (root only) |
| -l, --lock | lock the password for the named account (root only) |
| -u, --unlock | unlock the password for the named account (root only) |
| -e, --expire | expire the password for the named account (root only) |
| -f, --force | force operation |
| -x, --maximum = DAYS | maximum password lifetime (root only) |
| -n, --minimum = DAYS | minimum password lifetime (root only) |
| -w, --warning = DAYS | number of days warning users receives before password expiration (root only) |
| -i, --inactive = DAYS | number of days after password expiration when an account becomes disabled (root only) |
| -S, --status | report password status on the named account (root only) |
| --stdin | read new tokens from stdin (root only) |
| - ?, --help | Show this help message |
| --usage | Display brief usage message |
- 修改 RHEL 用户密码
echo "root" | passwd --stdin admin
Changing password for user admin.
passwd: all authentication tokens updated successfully.- 修改 Ubuntu 用户密码
echo -e "admin\nadmin" | passwd admin
Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully- 禁止某用户登录
passwd -l cxfans
passwd: password expiry information changed.
passwd -S cxfans
cxfans L 01/14/2020 0 99999 7 -1
passwd -u cxfans
passwd: unlocking the password would result in a passwordless account.
You should set a password with usermod -p to unlock the password of this account.