watch Linux tool of

watch

 

watch to monitor the results of a command to run

-N specifies the time interval

-d watch highlights regional variations.

-t watch command is closed at the top of the time interval, command, outputs the current time

 

Example:

1) highlight changes every second number of network connections

watch   -n  1   -d   netstat   -ant

 

2) every second to highlight changes in the number of http link

watch    -n   1   -d    ' pstree   |grep  http  '

 

3) monitor changes in the current directory scf files

watch   -d   ' ls  -l  |grep   scf        '

 

Average load 4) of the output system 10 seconds

watch   -n   10   'cat    /proc/loadavg'