修改密码
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## 修改密码命令,当前用户
passwd
# pi➜ ~ passwd
# Changing password for pi.
# Current password:
# New password:
# Retype new password:
## 重设root用户密码
sudo passwd root
## 切换到root用户
su root
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## 修改密码命令,当前用户
passwd
# pi➜ ~ passwd
# Changing password for pi.
# Current password:
# New password:
# Retype new password:
## 重设root用户密码
sudo passwd root
## 切换到root用户
su root
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