Commands using false sorted by votes

Commands using false (5)

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Ask user to confirm

This version works across on all POSIX compliant shell variants.
This is sample output - yours may be different.
3

Confirm() { echo -n "$1 [y/n]? " ; read reply; case $reply in Y*|y*) true ;; *) false ;; esac }

eikenberry · 2010-11-22 16:54:16 5
Juste a reminder that this works.

You can do some boolean logic like A or B then C else D using or : || and : && So you can do some : # false || false && echo true || echo false false # true || false && echo true || echo false true # false || true && echo true || echo false true # true || true && echo true || echo false true and so on ... I use it like : (ssh example.com 'test something') || $(ssh example.net 'test something') && echo ok || echo ko Show Sample Output
This is sample output - yours may be different.
```
true
```
0

true || false && echo true || echo false

Sizeof · 2010-04-20 09:17:08 5
Generate random password, human readable with no special characters.
This is sample output - yours may be different.
0

false; while [ $? != 0 ]; do apg -c /dev/urandom -n1 -E oOlL10 | egrep '^[[:alnum:]]+$'; done

evolix · 2012-04-24 08:30:28 5
PulseAudio: set the volume via command line

Command to raise the volume. From https://wiki.archlinux.org/index.php/PulseAudio#Keyboard_volume_control
This is sample output - yours may be different.
0

pactl set-sink-mute 0 false ; pactl set-sink-volume 0 +5%

MaxLanar · 2017-05-13 13:02:50 17
Bash function to see if the day ends in

The shell has perfectly adequate pattern matching for simple expressions. Show Sample Output
This is sample output - yours may be different.
```
ok
```
-1

function ends_in_y() { case $(date +%A) in *y ) true ;; * ) false ;; esac } ; ends_in_y && echo ok

unixmonkey9199 · 2010-04-06 22:18:52 4

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test moduli file generated for openssh

this command test the moduli file generated by the command ssh-keygen -G /tmp/moduli-2048.candidates -b 2048 . The test can be long depend of your cpu power , around 5 minutes to 30 minutes

list block devices

Shows all block devices in a tree with descruptions of what they are.

display typedefs, structs, unions and functions provided by a header file

will display typedefs, structs, unions and functions declared in 'stdio.h'(checkout _IO_FILE structure). It will be helpful if we want to know what a particular header file will offer to us. Command 'cpp' is GNU's C Preprocessor.

Retry the previous command until it exits successfully

Repeat the previously used command (!!) until it exits with a success code (0). To put a delay between attempts you could do something like $ until !!; do sleep 5; done to wait 5 seconds after each attempt.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Remove annoying OS X DS_Store folders

Recursively removes all those hidden .DS_Store folders starting in current working directory.

cycle through a 256 colour palette

Rainbow, instead of greys

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

untar undo

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Commands using false (5)

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