[root@test.db-audit.1 ~]# </dev/urandom tr -dc '1234567890!@#$%abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ' | head -c20; echo
lG01IX%sH!@Z%hbOw3Wf
[root@test.db-audit.1 ~]# 
cat >>/root/.bashrc <<"EOF"
# 随机生成复杂密码
alias generate_password="</dev/urandom tr -dc '1234567890!@#$%abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ' | head -c20; echo"
EOF

source /root/.bash_profile 
[root@test.db-audit.1 ~]# generate_password 
asLTG%ZO6vkkBgvFhosF
[root@test.db-audit.1 ~]# 

 

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