Linux Common commands

System Management

Ps-ef Viewing processes

NETSTAT-LPN | grep port to see if the port number is occupied

:%s/src/dst/g//VI Global replace% global s replace g that line multiple all replace

///vi search function

YY NP//vi copy n rows, if you copy a row do not need n

LS-LT//By time from near to far ls-ltr//by time from far to near

Find-name filename

How PS Displays the process list title

Gdb-p PID//Mounts to a running process for debugging

Date [email protected] "time (NULL)"//convert timestamp to standard format

Date-d "1970-01-01 UTC 1279592730 Seconds"

Date-d "2015-04-24 17:58:30" +%s//Convert standard format to timestamp

Date Date +%s//Display the current time in timestamp and standard format, respectively

Killall-2 Signal-9 strong kill

Ipcrm-m IPCS | Head??

Ntpdate 210.72.145.44//Calibration system time, the IP is the National Timing Center

SCP [Email Protected]:/usr/bin/telnet/usr/bin

SSH-based login to replicate data links between two hosts

ll/proc/26051

Grep-r ' Strings ' *//recursive lookup of strings in a file

Tar ZCVF DST RES//Compression tar ZXVF RES//Decompression

Ls-l |grep "^-" |wc-l view the number of files in the current directory

Reference URL:

1.http://www.jb51.net/linux/

2.http://man.linuxde.net/

3.http://www.cnblogs.com/laov/p/3541414.html

Linux Common commands