Commands using watch (155)
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0watch -n 1 "echo | sudo iptables -nvL | head -1 | awk '{print \$7}'"
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allows command to use switches
0watch() { if [ -z "$1" ]; then echo "usage: watch interval command" return fi sec=$1 shift while test :; do clear; date=$(date); echo -e "Every "$sec"s: $@ \t\t\t\t $date"; echo $@; sleep $sec; done } -
Usage:
watch ls -lBasic 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".0watch() { while true; do echo "<Ctrl+V><Ctrl+L>Every 2.0s: $@"; date; eval "$@"; sleep 2; done } -
Convenient to leave running in a yakuake or plasmacon terminal. For older kernels
watch -n 5 cat /proc/acpi/battery/BAT0/stateShow Sample Output0watch -n 5 "upower -d | grep energy -A 4" -
0watch 'mysql -e "show full processlist;"'
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You can upload via ftp the script.sh in unix text format, and then upload a file called run.txt to execute once the script. Such script can be multiline. If the script fails a failed.txt will be generated that you can see via ftp.
0watch -n10 "if test -e run.txt ; then chmod +x script.sh && ./script.sh && rm run.txt || rm run.txt && echo > failed.txt ; fi" -
Shows files and processes of the command php
0watch -d=c -n3 'lsof -itcp -iudp -c php' -
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. Show Sample Output
0watch "lsof -i -P |grep ESTABLISHED |awk '{printf \"%15.15s \\t%s\\n\", \$1, \$9}'" -
0watch "ls -al myfile"
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Shows a constantly updating display of disk IO activity. Two sections are in the output. The first is the IO activity since the machine was booted, the second section is the IO activity in the last second Show Sample Output
0watch -n 1 'iostat -xmd 1 2' -
becuase im lazy and cant be bothered looking at the tv guide to choose a channel , any improvments or comments appreciated
0randchannelurl=$(lynx -dump http://www.tvcatchup.com/channels.html | grep watch | sed 's/^......//'| awk 'BEGIN { srand() } int(rand() * NR) == 0 { x = $0 } END { print x }') && firefox -new-window $randchannelurl -
0watch 'php -r '"'"'$m=new Memcache;$m->connect("127.0.0.1", 11211);print_r($m->getstats());'"'"
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Doesn't list connections to other ports than port 80. Not f.e. 8080 or 8091. Excludes programs listening for connections, like your favorite webserver.
0watch "netstat -plan | grep -v LISTEN | grep \":80 \" | awk {'print \$5'} | cut -d: -f 1 | uniq -c | sort -nk 1" -
Must have rabbitmqctl: https://www.rabbitmq.com/man/rabbitmqctl.1.man.html See connections as the change, by user, sorted. Show Sample Output
0watch -d "rabbitmqctl -q list_connections | awk '{gsub(/[ \t]+/, \"\", \$1); print \$1}' | sort | uniq -c | sort -nr" -
This bash one-liner will let you watch the tail end of a log file in real time.
0watch -n 4 "tail -n $(expr $(tput lines) - 4) /var/log/apache2/access.log | cut -c 1-$(tput cols)" -
When bootstrapping or repairing a node this is a simple way to keep tabs on what a node is actively doing. Show Sample Output
0watch -d 'echo -e "Remaining: `(nodetool netstats | grep " 0%" | wc -l)` \nCurrent: `(nodetool netstats | grep "%" | grep -v " 0%")`"' -
This will highlight (with a box over it) any changes since the last refresh.
0watch -d -n 2 iptables -nvL -
forgot to use a pv or rsync and want to know how much has been copied. Show Sample Output
0watch ls -lh /path/to/folder -
0watch -n0.5 'ps -e -o pid,vsz,comm= | sort -n -k 2 | grep apache | wc -l'
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0watch -n1 iptables -vnL
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Uses the suggestions by jld on #12421 as well as the new iproute2 tools instead of old net-tools.
0watch -n5 ss \| grep -c WAIT -
display dd status on OSX (coreutils) every 10 seconds Show Sample Output
0watch -n 10 sudo kill -INFO $(pgrep -l '^dd$' | cut -d ' ' -f 1) -
Replace grep | sed with single awk script.
0watch -n10 -d sh -c 'sensors | awk '\''/:.*RPM/ { sub("[^:]*:","") ; print $1 }'\' -
0watch -n 0.5 ps -C <processname>
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0watch -n 0.1 \"dmesg | tail -n \$((LINES-6))\"
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