Commands using sleep sorted by votes

Commands using sleep (289)

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Monitor file contents that is being overwritten regularly

Watch file's contents that is getting overwritten Show Sample Output
This is sample output - yours may be different.
```
File contents
Which is beings updated every second
```
0

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

sergeylukin · 2012-11-26 08:02:03 6
Find processes stuck in dreaded
This is sample output - yours may be different.
0

while true; do date; ps auxf | awk '{if($8=="D") print $0;}'; sleep 1; done

vladfr · 2012-12-14 12:07:06 6
Displays mpd playing status in the terminal first raw

Actually this is a shorter version that fits the 255 chars limit of this resource. The full version shows status in the right top corner: alias mpdd='while sleep 1; do _r=$(awk '\''BEGIN{FS=": "}/^Artist:/{r=r""$2};/^Title:/{r=r" - "$2};/^time:/{r=$2" "r};/^state: play/{f=1}END{if(f==1){print r}}'\'' <(mpc status;mpc currentsong));_l=${#_r};[ $_l -eq 0 ] && continue;[ -z "$_p" ] && _p=$_l;echo -ne "\e[s\e[0;${_p}H\e[K\e[u";_p=$((COLUMNS - _l));echo -ne "\e[s\e[0;${_p}H\e[K\e[0;44m\e[1;33m${_r}\e[0m\e[u";done &' mpc is defined like this: function mpc() { echo "$*" | nc 192.168.1.1 6600 } Show Sample Output
This is sample output - yours may be different.
```
132:245 Front 242 - 7Rain [GHost]
```
0

while sleep 1; do (mpc status;mpc currentsong)|awk 'BEGIN{FS=": "}/^Artist:/{r=r""$2};/^Title:/{r=r" - "$2};/^time:/{r=$2" "r};/^state: play/{f=1}END{if(f==1){print r}}'|echo -ne "\e[s\e[0;0H\e[K\e[0;44m\e[1;33m$(cat -)\e[0m\e[u";done &

ichbins · 2012-12-24 18:03:29 8
Open/Close your co-worker's cd player

Ssh to your co-worker's box and watch them go crazy when the cd player ejects Show Sample Output
This is sample output - yours may be different.
```
<No output>
```
0

while true; do eject && sleep `expr $RANDOM % 5` && eject -t; done;

joeheyming · 2013-01-10 18:40:50 4
Random music player
This is sample output - yours may be different.
0

FILE='mp3.list';LNNO=`wc -l $FILE|cut -d' ' -f 1`;LIST=( `cat $FILE` );for((;;)) do SEED=$((RANDOM % $LNNO));RNNO=$(python -c "print int('`openssl rand -rand ${LIST[$SEED]} 8 -hex 2>/dev/null`', 16) % $LNNO");mplayer ${LIST[$RNNO]};sleep 2s; done

randomonkey · 2013-01-12 20:09:51 5
sleep for a random amount of time up to an hour

This command is good for a cron job or where you may have a lot of jobs potentially coincide on a scarce resource (like writing files back to a file server all at once). This will insert a sleep of a random amount of time up to an hour.
This is sample output - yours may be different.
0

sleep `shuf -i 0-3600 -n 1`

shawn174 · 2013-01-29 22:21:14 11
csv file of ping every minutes

Used in OS X. tr "\n" ";" may be replaced by echo ";" with linux versions of date. I reused ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 Show Sample Output
This is sample output - yours may be different.
```
Mer  6 f?v 2013 22:58:23 CET;37.756
Mer  6 f?v 2013 22:58:24 CET;36.194
Mer  6 f?v 2013 22:58:25 CET;28.422
Mer  6 f?v 2013 22:58:26 CET;38.456
Mer  6 f?v 2013 22:58:27 CET;29.385
Mer  6 f?v 2013 22:58:28 CET;38.182
Mer  6 f?v 2013 22:58:29 CET;27.605
```
0

while true; do (date | tr "\n" ";") && ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 ;sleep 1; done >> uptime.csv

fanchok · 2013-02-06 22:06:09 6
A fun little harmless prank to pull on your friends.

This will cause their computer to make a beeping sound after a random amount of time until it is killed.
This is sample output - yours may be different.
0

while true; do sleep $(($RANDOM%50)); timeout 1 speaker-test -f 20000 -t sine 2>/dev/null; done&

noah018 · 2013-02-14 21:47:40 5
Clean memory and SO cache
This is sample output - yours may be different.
0

sync ; /sbin/sysctl -w vm.drop_caches=3 ; sync ; sleep 2 ; /sbin/sysctl -w vm.drop_caches=0 ;/sbin/swapoff -a ; sleep 2 ;/sbin/swapon -a

szimbaro · 2013-02-27 12:39:20 4
Pop up a Growl alert if Amtrak wifi doesn't know where to find The Google
This is sample output - yours may be different.
0

while [ 1 ]; do (ping -c 1 google.com || growlnotify -m 'ur wifiz, it has teh sad'); sleep 10; done

noah · 2013-04-06 00:47:31 6
One liner to check out CLOSE_WAIT and TIME_WAIT connection every five seconds while debugging network apps

This has saved me many times while debugging timeout issues to "too many open files" issues. A high number of the order of thousand, indicates that somewhere connection is not being closed properly. Show Sample Output
This is sample output - yours may be different.
```
      7
      7
```
0

while true; do netstat -a|grep WAIT|wc -l; sleep 5; done

adimania · 2013-06-19 09:19:41 13
Wait for Web service to spin up, aka alert me when the server stops returning a 503

Show Sample Output
This is sample output - yours may be different.
```
OK: server is up.
OK: server is up.
OK: server is up.
```
0

while true; do curl -vsL -o /dev/null example.com 2>&1 | grep 503 > /dev/null || echo "OK: server is up."; sleep 8; done

noah · 2013-06-26 15:24:51 6
Wait for Web service to spin up, aka alert me when the server stops returning a 503
This is sample output - yours may be different.
0

while curl -dsL example.com 2>&1 | grep 503;do sleep 8;done;echo server up

emile · 2013-07-10 19:03:25 6
countdown from 10 ...
This is sample output - yours may be different.
0

clear; tput cup 8 8; for i in $(seq 1 10); do echo -n "$((11-$i)) ";sleep 1; done; tput cup 10 8; echo -e "DONE\n\n"

rgregor · 2013-10-01 11:21:25 6
Execute ls -lah every one second

This one works without an external program (watch). Witch is not await able all the time. HINT: use CTRL + C to exit the loop.
This is sample output - yours may be different.
0

while true; do ls -lah && sleep 1; done

exolon · 2013-10-20 07:16:49 14
Bingo-like raffle

This one is for OS X users: sort -R and shuf aren't available in Lion (10.7.5)
This is sample output - yours may be different.
0

yes 'echo $(( RANDOM%100+1 )); sleep 5' | bash

stx · 2013-11-09 16:22:59 6
Find processes blocked on IO
This is sample output - yours may be different.
0

while [ 1 ] ;do ps aux|awk '{if ($8 ~ "D") print }'; sleep 1 ;done

paulp · 2014-01-21 08:20:04 6
Schedule one job after another (running).

Run one script after another in such a way that second script starts after finishing first one. Without using Pipe | or ampercent && i.e. the first process is already running and you want second one to start after the first one finishes. And this can be done in different folder in case the output of second script will affect the output of first script. So run this on any folder you wish to. Where $PID is the process id of the already running job (add PID number) script2 is your script you wish to run after first script ends sleep 1 is sleep for one second (SUFFIX may be ?s? for seconds (the default), ?m? for minutes, ?h? for hours or ?d? for days, read man sleep) Show Sample Output
This is sample output - yours may be different.
```
Example : 


while ps -p 4437; do sleep 1; done; echo "It Works"
```
0

while ps -p $PID; do sleep 1; done; script2

sanjiv856 · 2014-02-12 08:07:44 8
Generate a one-time TOTP token, then restore the clipboard after 3 seconds

Typing a word in terminal is easier than digging your phone out, opening your two-factor authentication app and typing the code in manually. This alias copies the one-time code to your clipboard for 3 seconds (long enough to paste it into a web form), then restores whatever was on the clipboard beforehand. This command works on Mac. Replace pbpaste/pbcopy with your distribution's versions.
This is sample output - yours may be different.
0

alias oath='temp=$(pbpaste) && oathtool --base32 --totp "YOUR SEED HERE" | pbcopy && sleep 3 && echo -n $temp | pbcopy'

unixmonkey44825 · 2014-03-14 19:21:18 6
Chronometer

Chronometer using the bc calculator. Show Sample Output
This is sample output - yours may be different.
```
0
1
2
3
4
5
...
```
0

NUM=-1; while NUM=`echo $NUM + 1 | bc`; do echo $NUM && sleep 1; done

tomivs · 2014-06-07 20:48:45 9
Simple Bashrc Cron Job Using Aliases For A Simple Interface

Everytime You Run Bash It Will Run And Send The Command To Background In A Loop Forever. This Is Useful In Android To Avoid Getting Discconnected While Using ADB Or Other Services Like SSH By Being Inactive For Long Periods Of Time. In My Case I Get Bash Full Suport Only Through ADB And Also A Decent Python Interpreter Using Python For Android.
This is sample output - yours may be different.
0

alias alive='(while true; do ping -c 4 192.168.1.1 > /dev/null 2>&1 ; sleep 300 ; done)'

DarkXDroid · 2014-06-13 06:13:57 7
Query VirusTotal Hash DB using a Public APIKEY

Replace "APIKEY" with your public apikey Show Sample Output
This is sample output - yours may be different.
```
VTHits 
VTHits 46,md5:99017f6eebbac24f351415dd410d522d
VTHits 0,md5:ca4293242b7679bdc057d3437f6977d4
VTHits 
VTHits 
```
0

cat h.txt| while read line; do curl -s -X POST 'https://www.virustotal.com/vtapi/v2/file/report' --form apikey="APIKEY" --form resource="$line"|awk -F'positives\":' '{print "VTHits"$2}'|awk -F' ' '{print $1" "$2$5$6}'|sed 's/["}]//g' && sleep 15; done

jsbrown · 2014-07-17 16:10:28 7
wait processes

wait nginx processes. Show Sample Output
This is sample output - yours may be different.
```
while pgrep nginx;do ;sleep 1;done
```
0

while pgrep nginx;do ;sleep 1;done

umiyosh · 2014-12-25 06:44:12 10
keep trying a command until it is successful

Keep retrying YOURCOMMAND until it succeeds. Add sleep between retries so that +c works. (Though you can always use +z and kill %1). Source: http://stackoverflow.com/a/5274386/2175968
This is sample output - yours may be different.
0

until YOURCOMMAND; do echo "Retrying"; sleep 2; done

wzhd · 2015-06-03 06:44:24 9
Continuously show wifi signal strength on a mac

Shows the WiFi signal strength without having to display thousands of lines Show Sample Output
This is sample output - yours may be different.
```
Wifi signal strength: -34
```
0

while i=1; do echo -ne 'Wifi signal strength:' $(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | grep CtlRSSI | awk {'print $2'}) '\r'; sleep 0.5; done

ackgrep · 2015-07-19 11:52:04 9
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Print every Nth line (to a maximum)

Thanks to knoppix5 for the idea :-) Print selected lines from a file or the output of a command. Usage: $ every NTH MAX [FILE] Print every NTH line (from the first MAX lines) of FILE. If FILE is omitted, stdin is used. The command simply passes the input to a sed script: $ sed -n -e "${2}q" -e "0~${1}p" ${3:-/dev/stdin} print no output $ sed -n quit after this many lines (controlled by the second parameter) $ -e "${2}q" print every NTH line (controlled by the first parameter) $ -e "0~${1}p" take input from $3 (if it exists) otherwise use /dev/stdin ${3:-/dev/stdin}

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Find duplicate UID in /etc/passwd

You can use only awk

Backup trought SSH

Detect if we are running on a VMware virtual machine

If you run this command on a VMWare Virtual Machine, it will return the string "VMware Virtual Platform". If you run it on a physical machine, it will return nothing. Useful for having a script determine if it's running on a VM or not. Of course, you must have dmidecode installed for this to work. Try it this way in a script: ISVM=$(dmidecode | awk '/VMware Virtual Platform/ {print $3,$4,$5}') Then test if $ISVM has text in it, or is blank.

Sum columns from CSV column $COL

archlinux:Delete packages from pacman cache that are older than 7 days

Sometimes my /var/cache/pacman/pkg directory gets quite big in size. If that happens I run this command to remove old package files. Packages that we're upgraded in last N days are kept in case you are forced to downgrade a specific package. The command is obviously Arch Linux related.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

grep certain file types recursively

-exec works better and faster then using a pipe

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Commands using sleep (289)

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