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Commands tagged watch

Terminal - Commands tagged watch - 38 results

watch 'ls -tr1 | tail -n1 | xargs tail'

2013-05-09 11:37:59

User: batandwa

Functions: tail watch xargs

Tags: tail ls xargs watch

-5

Up
Down

Poll and print end of lates modified file

Watches for file modifications in the current directory and tails the file.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

watch "lsof -i -P |grep ESTABLISHED |awk '{printf \"%15.15s \\t%s\\n\", \$1, \$9}'"

2013-04-03 02:04:11

User: skarfacegc

Functions: watch

Tags: lsof watch networking awk grep

Up
Down

What addresses are your applications talking to?

Shows which applications are making connections, and the addresses they're connecting to. Refreshes every 2 seconds (watch's default). Test on OSX, should work anywhere watch and lsof work.

watch -d=c -n3 'lsof -itcp -iudp -c php'

2013-03-14 01:24:50

User: AskApache

Functions: watch

Tags: lsof PHP watch

Up
Down

Watch your websites php

Shows files and processes of the command php

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while sleep 1; do clear; cat /tmp/whatever.cue; done

2012-11-26 08:02:03

User: sergeylukin

Functions: cat sleep

Tags: watch monitor

Up
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Monitor file contents that is being overwritten regularly

Watch file's contents that is getting overwritten

while sleep 1; do foo; done

2012-09-14 20:21:04

User: lowbatteries

Functions: sleep

Tags: while sleep watch while loop

Up
Down

repeat a command every x seconds

For use when you can't use "watch" (user-defined functions, aliases). This isn't mine - its an alternate posted in the comments by flatcap, and is the shortest and easiest to remember.

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watch "asterisk -vvvvvrx 'core show channels' | egrep \"(call|channel)\""

2012-08-29 13:40:45

User: rowshi

Functions: watch

Tags: Ubuntu watch asterisk

Up
Down

Watch active calls on an Asterisk PBX

This handles when you have a single call or channel. Other commands will strip out the result if there is a single channel or call active because the output changes the noun to be singular instead of plural.

top -p $(pgrep -d , foo)

2012-06-27 20:59:09

User: michelsberg

Functions: top

Tags: top watch process ps monitor

Up
Down

Use top to monitor only all processes with the same name fragment 'foo'

top accecpts a comma separated list of PIDs.

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top '-p' $(pgrep -d ' -p ' foo)

2012-06-27 18:32:03

User: __

Functions: top

Tags: top watch process ps monitor

Up
Down

Use top to monitor only all processes with the same name fragment 'foo'

Like command 10870, but no need for sed

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

top $(pgrep foo | sed 's|^|-p |g')

2012-06-14 15:13:00

User: michelsberg

Functions: sed top

Tags: top watch process ps monitor

Up
Down

Use top to monitor only all processes with the same name fragment 'foo'

pgrep foo

may return several pids for process foobar footy01 etc. like this:

11427

12576

12577

sed puts "-p " in front and we pass a list to top:

top -p 11427 -p 12576 -p 12577

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watch -n 1 "awk 'NR==3 {print \"Signal strength = \" \$3 \"00 %\"}''' /proc/net/wireless"

2012-06-07 11:00:56

User: jlaunay

Functions: watch

Tags: status cat watch wireless signals wifi

-2

Up
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Displaying wireless signal on screen in realtime.

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watch -n 1 cat /proc/net/wireless

2012-06-07 10:38:21

User: cantormath

Functions: cat watch

Tags: status cat watch wireless signals wifi

-3

Up
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Displaying wireless signal on screen in realtime.

Values will depend on the driver and the hardware specifics, so you need to refer to your driver documentation for proper interpretation of those values.

watch 'curl -s --location -I http://any.site.or.url | grep -e "$HTTP\|Location$"'

2012-04-23 17:05:29

User: theist

Functions: grep watch

Tags: curl redirect watch

Up
Down

Debug redirects between production reloads

Watches the headers of a curl, following any redirects and printing only the HTTP status and the location of the possible redirects.

while true; do iptables -nvL > /tmp/now; diff -U0 /tmp/prev /tmp/now > /tmp/diff; clear; cat /tmp/diff; mv /tmp/now /tmp/prev; slee p 1; done

2012-04-15 00:02:33

User: unixmonkey34223

Functions: cat diff iptables mv

Tags: grep iptables watch diffe

Up
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watch iptables counters

this alternative shows the differences as they occur so that they are made plain

watch() { while true; do echo "<Ctrl+V><Ctrl+L>Every 2.0s: $@"; date; eval "$@"; sleep 2; done }

2012-03-07 09:30:15

User: hfs

Functions: echo eval sleep watch

Tags: watch

Up
Down

Poor man's watch: Repeat a command every N seconds

Usage:

watch ls -l

Basic but usable replacement for the "watch" command for those systems which don't have it (e.g. the Solaris I'm trapped on).

Type Ctrl+V to escape the following Ctrl+L which clears the screen. It will be displayed as "^L".

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/usr/sbin/asterisk -rx 'core show channels' | grep -m1 "call" | cut -d' ' -f1

2012-02-01 17:55:17

User: stackoverflow128

Functions: cut grep

Tags: Ubuntu watch asterisk

Up
Down

Watch active calls on an Asterisk PBX

Only the number of calls nothing else.

while true ; do echo -n "`date`";curl localhost:3000/site/sha;echo -e;sleep 1; done

2011-10-14 21:00:41

User: donnoman

Functions: echo sleep true

Tags: watch repeat timeline

Up
Down

Repeat a command until stopped

In this case it runs the command 'curl localhost:3000/site/sha' waiting the amount of time in sleep, ie: 1 second between runs, appending each run to the console.

This works well for any command where the output is less than your line width

This is unlike watch, because watch always clears the display.

tail -f ~/.bash_history

2011-09-15 19:35:09

User: totti

Functions: tail

Tags: watch

-1

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Watch end of files real time, especially log files

Changes are displayed when they are written to the file

to exit

watch -n 2 -d '/sbin/ifconfig eth0'

2011-08-16 10:29:34

User: totti

Functions: watch

Tags: Network ifconfig watch

Up
Down

Highlight network TX, RX information change

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$ history

2011-07-14 17:41:11

User: naosam

Tags: bash watch

Up
Down

monitor the last command run

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watch !!

2011-07-05 12:50:56

User: wincus

Functions: watch

Tags: bash watch

Up
Down

monitor the last command run

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watch vmstat -sSM

2011-06-16 18:02:24

User: 0disse0

Functions: vmstat watch

Tags: vmstat watch

Up
Down

monitor memory usage

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watch 'netstat -anptu |egrep "^Proto|:80 "'

2011-05-18 15:05:52

User: Mozai

Functions: egrep watch

Tags: monitoring netstat watch

Up
Down

Cheap iftop

Shows updated status in a terminal window for connections to port '80' in a human-friendly form. Use 'watch -n1' to update every second, and 'watch -d' to highlight changes between updates.

If you wish for status updates on a port other than '80', always remember to put a space afterwards so that ":80" will not match ":8080".

while cat /proc/net/dev; do sleep 1; done | awk '/eth0/ {o1=n1; o2=n2; n1=$2; n2=$10; printf "in: %9.2f\t\tout: %9.2f\r", (n1-o1)/1024, (n2-o2)/1024}'

2011-03-26 02:52:14

User: quadcore

Functions: awk cat printf sleep

Tags: Network watch rate interface

Up
Down

Watch RX/TX rate of an interface in kb/s

A shorter version

while :; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done

2011-03-22 10:23:33

User: DerksIT

Functions: awk cut echo grep sleep tr

Tags: Network watch rate interface

Up
Down

Watch RX/TX rate of an interface in kb/s

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while [ /bin/true ]; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done

2011-03-22 10:02:23

User: hons

Functions: awk cut echo grep sleep tr

Tags: Network watch rate interface

Up
Down

Watch RX/TX rate of an interface in kb/s

Just a simple way without the need of additional tools. Of course, replace eth0 with your IF.

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