查看操作记录小技巧

1.编辑/etc/bashrc

if unset PROMPT_COMMAND > /dev/null 2>&1
then
declare -r REAL_USER=$(who am i|awk '{print $1}')
declare -r LOGINTIME=$(date "+%s")
declare -r HGROUPS=$(groups $USER|awk '{print $NF}')
export PROMPT_COMMAND='$( command=$(history 1 | { read x y; echo $y; });echo "$HOSTNAME $LOGINTIME user=$REAL_USER@$HGROUPS from=$SSH_CLIENT pwd=$PWD command:$command [$(date "+%Y-%m-%d %T")]">>/var/log/histlog )'
declare -r PROMPT_COMMAND
PS1='[u@h W]$ '
fi
alias grep='grep --color=auto'
alias vi='vim'
HISTTIMEFORMAT="%Y-%m-%d %H:%M:%S "
HISTFILESIZE=10000
HISTSIZE=10000

2.source下环境变了

[root@k8s-matser01 ~]# source /etc/bashrc
[root@k8s-matser01 ~]# touch /var/log/histlog && chmod 777 /var/log/histlog && chattr +a /var/log/histlog
[root@k8s-matser01 log]# cat /var/log/histlog
[root@k8s-matser01 log]# vim /etc/bashrc 
[root@k8s-matser01 log]# pwd
/var/log
[root@k8s-matser01 log]# cat /var/log/histlog
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/root command:2021-10-11 13:17:37 source /etc/bashrc [2021-10-11 13:17:37]
k8s-matser01 1633929462 user=root@root from=10.1.1.81 14984 22 pwd=/root command:2021-10-11 13:17:42 source /etc/bashrc [2021-10-11 13:17:42]
k8s-matser01 1633929462 user=root@root from=10.1.1.81 14984 22 pwd=/root command:2021-10-11 13:17:50 touch 123 [2021-10-11 13:17:50]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:18:03 cd /var/log/ [2021-10-11 13:18:03]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:18:05 ls [2021-10-11 13:18:05]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:18:12 vim histlog [2021-10-11 13:18:22]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:18:12 vim histlog [2021-10-11 13:22:15]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:22:18 cat histlog [2021-10-11 13:22:18]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:24:14 vim /etc/bashrc [2021-10-11 13:25:30]
k8s-matser01 1633929457 user=root@root from=10.1.1.81 7223 22 pwd=/var/log command:2021-10-11 13:26:22 pwd [2021-10-11 13:26:22]