20个对Linux专家非常有用命令(1)(5)
8. 命令: write
如果 'mesg' 是 'y',让你的文本直接发送到另一台 Linux 机器的屏幕。
- [avishek@tecmint ~]$ write ravisaive
9. 命令: talk
增强的write命令,talk命令可让你与其他登录的用户交谈。
- [avishek@tecmint ~]$ talk ravisaive
注释: 如果 talk 命令没安装的话,可以通过apt 或yum 安装所需的包.
- view sourceprint?
- [avishek@tecmint ~]$ yum install talk
- OR
- [avishek@tecmint ~]$ apt-get install talk
10. 命令:w
是否觉得命令'w'很滑稽?但是事实上不是的。它是一个命令,尽管只有一个字符长!命令"w"是uptime和who命令,以前后的顺序组合在一起。
- [avishek@tecmint ~]$ w
- 15:05:42 up 4:49, 3 users, load average: 0.02, 0.01, 0.00
- USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
- server tty7 :0 14:06 4:43m 1:42 0.08s pam: gdm-passwo
- server pts/0 :0.0 14:18 0.00s 0.23s 1.65s gnome-terminal
- server pts/1 :0.0 14:47 4:43 0.01s 0.01s bash
11. 命令: rename
见名知意,这个命令重命名文件。rename将会通过从文件名的首字符开始替换,重命名为指定的文件名。
- Give the file names a1, a2, a3, a4.....1213
仅仅写这些命令:[@Lesus 注: 在Ubuntu上不支持这种格式, rename与mv不同的是,rename可以批量修改,如同带了while的mv操作。]
- view sourceprint?
- rename a1 a0 a?
- rename a1 a0 a??
12. 命令: top
显示CPU进程信息。这个命令自动刷新,默认是持续显示CPU进程信息,除非使用了中断指令。
- [avishek@tecmint ~]$ top
- top - 14:06:45 up 10 days, 20:57, 2 users, load average: 0.10, 0.16, 0.21
- Tasks: 240 total, 1 running, 235 sleeping, 0 stopped, 4 zombie
- %Cpu(s): 2.0 us, 0.5 sy, 0.0 ni, 97.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
- KiB Mem: 2028240 total, 1777848 used, 250392 free, 81804 buffers
- KiB Swap: 3905532 total, 156748 used, 3748784 free, 381456 cached
- PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
- 23768 ravisaiv 20 0 1428m 571m 41m S 2.3 28.9 14:27.52 firefox
- 24182 ravisaiv 20 0 511m 132m 25m S 1.7 6.7 2:45.94 plugin-containe
- 26929 ravisaiv 20 0 5344 1432 972 R 0.7 0.1 0:00.07 top
- 24875 ravisaiv 20 0 263m 14m 10m S 0.3 0.7 0:02.76 lxterminal
- 1 root 20 0 3896 1928 1228 S 0.0 0.1 0:01.62 init
- 2 root 20 0 0 0 0 S 0.0 0.0 0:00.06 kthreadd
- 3 root 20 0 0 0 0 S 0.0 0.0 0:17.28 ksoftirqd/0
- 5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
- 7 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/u:0H
- 8 root rt 0 0 0 0 S 0.0 0.0 0:00.12 migration/0
- 9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
- 10 root 20 0 0 0 0 S 0.0 0.0 0:26.94 rcu_sched
- 11 root rt 0 0 0 0 S 0.0 0.0 0:01.95 watchdog/0
- 12 root rt 0 0 0 0 S 0.0 0.0 0:02.00 watchdog/1
- 13 root 20 0 0 0 0 S 0.0 0.0 0:17.80 ksoftirqd/1
- 14 root rt 0 0 0 0 S 0.0 0.0 0:00.12 migration/1
- 16 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:0H
- 17 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 cpuset
- 18 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper
- 19 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs
- 20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns
- 21 root 20 0 0 0 0 S 0.0 0.0 0:00.04 bdi-default
- 22 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kintegrityd
- 23 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kblockd
- 24 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 ata_sff
另查看 12 TOP命令例子 ·[@Lesus 注:htop比top命令更好用,不过需要自己安装]
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