linux命令之history
linux命令history会记录并显示用户所执行过的所有命令,也可以对其命令进行修改和删除操作。
history [参数]
参数 | 说明 |
-a | 将当前会话的历史信息追加到历史文件(.bash_history)中 |
-c | 删除所有条目从而清空历史列表 |
-d | 从指定位置删除历史列表 |
-r | 读取历史文件(.bash_history)到缓冲区 |
-s | 将指定的命令添加到缓冲区 |
-w | 将缓冲区信息写入到历史文件(.bash_history) |
命令:
history -a
- [root@centos79-3 ~]# ping 1.1.1.1
- PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
- 64 bytes from 1.1.1.1: icmp_seq=1 ttl=128 time=247 ms
- 64 bytes from 1.1.1.1: icmp_seq=2 ttl=128 time=361 ms
- ^C
- --- 1.1.1.1 ping statistics ---
- 2 packets transmitted, 2 received, 0% packet loss, time 1014ms
- rtt min/avg/max/mdev = 247.939/304.742/361.545/56.803 ms
- [root@centos79-3 ~]# ping 2.2.2.2
- PING 2.2.2.2 (2.2.2.2) 56(84) bytes of data.
- ^C
- --- 2.2.2.2 ping statistics ---
- 3 packets transmitted, 0 received, 100% packet loss, time 2007ms
-
- [root@centos79-3 ~]# history -a
- [root@centos79-3 ~]# tail -f .bash_history
- #1695879396
- cat .bash_history
- #1695879406
- clear
- #1695879409
- ping 1.1.1.1
- #1695879414
- ping 2.2.2.2
- #1695879420
- history -a
- [root@centos79-3 ~]#
命令:
history -d 3
- [root@centos79-3 ~]# history | grep 1289
- 1289 2023-09-28 13:54:07 root set +o history
- 1313 2023-09-28 14:05:36 root history | grep 1289
- [root@centos79-3 ~]# history -d 1289
- [root@centos79-3 ~]# history | grep 1289
- 1289 2023-09-28 13:55:16 root history
- 1312 2023-09-28 14:05:36 root history | grep 1289
- 1313 2023-09-28 14:05:46 root history -d 1289
- 1314 2023-09-28 14:05:50 root history | grep 1289
- [root@centos79-3 ~]#
命令:
history -c
- [root@centos79-3 ~]# history -c
- [root@centos79-3 ~]#
命令:
history -r
- [root@centos79-3 ~]# history -r
- [root@centos79-3 ~]# tail -n 4 .bash_history
- #1695879420
- history -a
- #1695879044
- ifconfig
- [root@centos79-3 ~]#
命令:
history -w
- [root@centos79-3 ~]# history -w
- [root@centos79-3 ~]# tail -n 4 .bash_history
- #1695880068
- clear
- #1695880071
- history -w
- [root@centos79-3 ~]#
命令:
set +o history
- [root@centos79-3 ~]# set +o history
- [root@centos79-3 ~]# ping 111.111.111.111
- PING 111.111.111.111 (111.111.111.111) 56(84) bytes of data.
- ^C
- --- 111.111.111.111 ping statistics ---
- 3 packets transmitted, 0 received, 100% packet loss, time 2021ms
- [root@centos79-3 ~]# tail -n 1 .bash_history
- set +o history
- [root@centos79-3 ~]#
命令:
set -o history
- [root@centos79-3 ~]# history | tail -n 6
- 1302 2023-09-28 13:55:10 root ping 16.16.16.16
- 1303 2023-09-28 13:55:16 root history
- 1304 2023-09-28 13:55:28 root cat .bash_history
- 1305 2023-09-28 13:55:42 root history
- 1306 2023-09-28 13:55:51 root history | tail -n 4
- 1307 2023-09-28 13:55:58 root history | tail -n 6
- [root@centos79-3 ~]#
另外:
再次执行历史记录命令的三种方式:
第一个方式是:!数字
第二个方式是: ctrl+r 快捷键从小往上搜索,右方向键确定
第三个方式是: !字符串