CHPASSWD(8) System Management Commands CHPASSWD(8)
NAME
chpasswd - update passwords in batch mode
SYNOPSIS
chpasswd [options]
DESCRIPTION
The chpasswd command reads a list of user name and password pairs from
standard input and uses this information to update a group of existing
users. Each line is of the format:
user_name:password
例：
echo "test:d7IPtEX7y#a5^B&" | chpassd
标签：password,name,修改,update,密码,user,Linux,chpasswd,CHPASSWD From： https://www.cnblogs.com/justtosee/p/17118811.html