批量创建linux用户
AWK
[root@shanghaicity ~]# seq -w 100|awk '{print "useradd user"$1";echo $RANDOM|md5sum|cut -c 1-10|tee /root/pass.txt"$1"|passwd --stdin user"$1}'|bash
Changing password for user user001.
passwd: all authentication tokens updated successfully.
Changing password for user user002.
passwd: all authentication tokens updated successfully.
Changing password for user user003.
passwd: all authentication tokens updated successfully.
......
passwd: all authentication tokens updated successfully.
Changing password for user user099.
passwd: all authentication tokens updated successfully.
Changing password for user user100.
passwd: all authentication tokens updated successfully.
SED
[root@shanghaicity ~]# seq -w 100|sed -nr 's#(.*)#useradd seduser\1#gp' |bash
[root@shanghaicity ~]# cat /etc/passwd|grep seduser|wc -l
100
Shell
[root@shanghaicity ~]# cat shell.sh
for i in $(seq -w 100);do
useradd shelluser$i
done
[root@shanghaicity ~]# sh shell.sh
[root@shanghaicity ~]# cat /etc/passwd|grep shell
shelluser001:x:1192:1193::/home/shelluser001:/bin/bash
shelluser002:x:1193:1194::/home/shelluser002:/bin/bash
......
shelluser099:x:1290:1291::/home/shelluser099:/bin/bash
shelluser100:x:1291:1292::/home/shelluser100:/bin/bash
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