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Commands using set (54)

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Reproduce test failure by running the test in loop

If you need to fix a randomly failing test (race condition), you need to run it until you get that hard-to-reproduce failure. Show Sample Output
This is sample output - yours may be different.
```
Test run starting...
...
SUCCESS
Test run starting...
...
FAILURE
```
-3

(set -e; while true; do TEST_COMMAND; done) | tee log

wipu · 2011-09-06 12:29:11 6
Power Supply Triggered Alert

Checks whether your power supply is still plugged in. If not it will trigger an alarm at maximum volume. Show Sample Output
This is sample output - yours may be different.
```
run this in a screen and unplug your headphones.
```
-3

check(){ power=$(acpi -a) ; if [[ $power == *on-line* ]] ; then echo "supply is on"; else echo "somebody is steeling your laptop"; amixer -c0 set Master 100+ unmute ; mpg123 nuclear-alarm.mp3 ; fi } ;while true; do check ; sleep 2 ; done

hoodie · 2011-12-10 13:42:52 5
sets volume via command line

this will increase the volume by 2 decibels on the pcm channel. the argument to -c is for which sound card to use, the arg after set is the channel (PCM, Master, etc.) and what to set by. related commands: amixer -c 0 set PCM 2dB- decrease volume by 2 decibels amixer -c 0 set PCM toggle toggle mute/unmute this is for alsa systems for mac os (and maybe other UNIX systems) osascript -e 'set Volume *' where * is any number (can have decimal points) between 0 and 10
This is sample output - yours may be different.
-4

amixer -c 0 set PCM 2dB+

Fate · 2009-02-22 22:06:46 6
Oracle: set column separator

set colsep "&TAB" -- for tab separator set colsep "|" -- for pipe separator etc...
This is sample output - yours may be different.
-5

set colsep "{char}"

ebah80 · 2011-04-05 10:48:48 5
< 1 2 3

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Sysadmin day date of any given year

Calculate the date of Sysadmin day (last Friday of July) of any given year

pretend to be busy in office to enjoy a cup of coffee

Dialog's gauge widget accepts progress updates on stdin. This version runs dialog once and updates it every second. There's no need to use timeout which causes screen flicker since it restarts dialog for each update.

Top 20 commands in your bash history

download newest adminer and rename to it's version accordingly

If the version already downloaded. it will not download again

Create a new file

resize all JPG images in folder and create new images (w/o overwriting)

Convert all jpegs in the current directory into ~1024*768 pixels and ~ 150 KBytes jpegs

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" }

Add prefix onto filenames

Best to try first with -n flag, to preview

Use GNU info with a pager

This makes GNU info output menu items recursively and pipe its contents to less, allowing one to use GNU info in a manner similar to 'man'.

read manpage of a unix command as pdf in preview (Os X)

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Commands using set (54)

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