Commands using sleep (289)
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credit goes to icanhaslinux.com http://icanhaslinux.com/2007/09/17/annoy-your-coworkers-linux-style/
0while true; do sleep $(($RANDOM/1000)) && beep -f 2000 -l $(($RANDOM/100)) ; done -
Works on Laptops, Desktop having communication b/w UPS & CPU Show Sample Output
0NotifyOnBATTERY () { while :; do on_ac_power||notify-send "Running on BATTERY"; sleep 1m; done } -
No need to install additional packages eg: say hello For multiword say how+are+you
0say() { wget -q -U Mozilla -O output.mp3 "http://translate.google.com/translate_tts?tl=en&q=$1"; gnome-terminal -x bash -c "totem output.mp3"; sleep 4; totem --quit;} -
0i=60;while [ $i -gt 0 ];do if [ $i -gt 9 ];then printf "\b\b$i";else printf "\b\b $i";fi;sleep 1;i=`expr $i - 1`;done
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Testing in a TTY terminal , not emulator . Show Sample Output
0#!/bin/bash cd /usr/share/consolefonts/; for i in * ; do setfont; echo "testing >> $i << font" ; setfont $i ; showconsolefont ; sleep 5 ; clear ; done -
Yeah yeah, another "render man page in pdf", but this time it creates a temporary PDF that stays resident in memory for viewing, but is eliminated on the filesystem. Replace evince with your PDF viewer of choice.
0man -t man | ps2pdf - temp.pdf; evince temp.pdf &> /dev/null &; sleep 3; rm temp.pdf -
Found on https://bitcointalk.org/index.php?topic=55520.0
0for i in `wget -O url|grep '<a rel="nofollow"'|grep http|sed 's|.*<a rel="nofollow" class="[^"]\+" href="[^"]*https\?://\([^/]\+\)[^"]*">[^<]\+</a>.*|\1|'`;do if test -n "$(whois $i|grep -i godaddy)";then echo $i uses GoDaddy;fi;sleep 20;done -
Use the excellent sensiblepasswords.com to a generate random (yet easy-to-remember) password every second, and copy it to the clipboard. Useful for generating a list of passwords and pasting them into a spreadsheet. This script uses "madebynathan"'s "cb" function (http://madebynathan.com/2011/10/04/a-nicer-way-to-use-xclip/); you could also replace "cb" with
xclip -selection cRemove "while true; do" and "; done" to generate and copy only 1 password. Show Sample Output0while true; do curl -s http://sensiblepassword.com/?harder=1 | tail -n 15 | head -n 1 | sed 's;<br/>;;' | cut -c 5- | cb; sleep 1; done -
change the time that you would like to have as print interval and just use it to say whatever you want to Show Sample Output
0sayspeed() { for i in $(seq 1 `echo "$1"|wc -c`); do echo -n "`echo $1 |cut -c ${i}`"; sleep 0.1s; done; echo "";} -
Will finish automagically when mplayer quits. Can be run from any directory. It seems to finish by it self rarely, probably because of some timing issue? There's probably a way around that which I can't think of right now Show Sample Output
0r="readlink /proc/`pgrep -o mplayer`/fd/3";while [ -e "`$r`" ];do if [ "$f" = "`$r`" ];then sleep 1;else f="`$r`";notify-send " $f";fi;done -
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 } -
works the same, but uses festival instead of espeak
0for ((x=0;;x+=5)); do sleep 5; echo $x | festival --tts & done -
Says time every 5 seconds in hours, minutes and seconds using festival.
0for ((x=0;;x+=5)); do sleep 5; hours=$(($x/3600)); minutes=$(($x%3600/60)); seconds=$(($x%60)); echo "$hours hours $minutes minutes $seconds seconds have elapsed" | festival --tts & 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 } -
0while [ 1 ]; do tail /var/log/httpd/error_log; sleep 2; clear; done
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0yes "$(seq 232 255;seq 254 -1 233)" | while read i; do printf "\x1b[48;5;${i}m\n"; sleep .01; done
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A tweak using Patola's code as a base, this full-width green matrix display has all the frills (and all the printable characters). You don't need the surrounding parens if you don't care about losing globbing capabilities. Z-shell (/bin/zsh) needs neither the parens nor the `set -o noglob` Screen shot (animated): http://desmond.imageshack.us/Himg32/scaled.php?server=32&filename=matrixh.gif&res=landing If it's too slow, try lowering the `sleep 0.05` or even replacing it with `true` (which is faster than `sleep 0`). I squashed it as narrow as I could to conserve space, though somebody could probably squeeze a char or two out. Enjoy!
0(set -o noglob;while sleep 0.05;do for r in `grep -ao '[[:print:]]' /dev/urandom|head -$((COLUMNS/3))`;do [ $((RANDOM%6)) -le 1 ] && r=\ ;echo -ne "\e[$((RANDOM%7/-6+2));32m $r ";done;echo;done) -
Replace "4158575309@txt.att.net" with your carrier's SMS gateway identifier. The one in the sample is for AT&T. More here https://en.wikipedia.org/wiki/List_of_SMS_gateways. Helpful for getting notifications about long running commands. ";" executes regardless of exit status of last command. && will only notify you if the command succeeds.
0sleep 15 ; `echo "done" | mail -s "done" 4158575309@txt.att.net` -
0sleep 3;import -window root output.png
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usage: alarmclock TIME TIME is a sleep(1) parameter which tells function how long to wait until raise the alarm.
0alarmclock() { [ $1 ] || echo Parameter TIME is missing. 1>&2 && return 1 ; ( sleep $1 ; for x in 9 8 7 6 5 4 3 2 1 ; do for y in `seq 0 $[ 10 - $x ] ` ; do printf "\a"; sleep 0.$x ; done ; done ) & } -
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.
0while sleep 1; do foo; done -
Using the output of 'ps' to determine CPU usage is misleading, as the CPU column in 'ps' shows CPU usage per process over the entire lifetime of the process. In order to get *current* CPU usage (without scraping a top screen) you need to pull some numbers from /proc/stat. Here, we take two readings, once second apart, determine how much IDLE time was spent across all CPUs, divide by the number of CPUs, and then subtract from 100 to get non-idle time. Show Sample Output
0NUMCPUS=`grep ^proc /proc/cpuinfo | wc -l`; FIRST=`cat /proc/stat | awk '/^cpu / {print $5}'`; sleep 1; SECOND=`cat /proc/stat | awk '/^cpu / {print $5}'`; USED=`echo 2 k 100 $SECOND $FIRST - $NUMCPUS / - p | dc`; echo ${USED}% CPU Usage -
Execute commands serially on a list of hosts. Each ssh connection is made in the background so that if, after five seconds, it hasn't closed, it will be killed and the script will go on to the next system. Maybe there's an easier way to set a timeout in the ssh options...
0for host in $MYHOSTS; do ping -q -c3 $H 2>&1 1>/dev/null && ssh -o 'AllowedAuthe ntications publickey' $host 'command1; command2' & for count in 1 2 3 4 5; do sleep 1; jobs | wc -l | grep -q ^0\$ && continue; done; kill %1; done -
Cleaned up and silent with &>/dev/null at the end. Show Sample Output
0for host in $HOSTNAMES; do ping -q -c3 $host && ssh $host 'command' & for count in {1..15}; do sleep 1; jobs | wc -l | grep -q ^0\$ && continue; done; kill %1; done &>/dev/null -
0mencoder tv:// -tv driver=v4l2:width=320:height=240:device=/dev/video1 -nosound -ovc lavc -really-quiet -quiet -o - | (sleep 10m; cat) | mplayer - -cache 512
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