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Terminal - All commands - 12,018 results
for i in /usr/share/cowsay/cows/*.cow; do cowsay -f $i "$i"; done
2015-02-26 20:56:45
User: wincus
1

There are lots of different cow options to use, this script will show them all

truncate --size 1G bigfile.txt
2015-02-26 11:56:27
User: ynedelchev
1

If you want to create fast a very big file for testing purposes and you do not care about its content, then you can use this command to create a file of arbitrary size within less than a second. Content of file will be all zero bytes.

The trick is that the content is just not written to the disk, instead the space for it is somehow reserved on operating system level and file system level. It would be filled when first accessed/written (not sure about the mechanism that lies below, but it makes the file creation super fast).

Instead of '1G' as in the example, you could use other modifiers like 200K for kilobytes (1024 bytes), 500M for megabytes (1024 * 1024 bytes), 20G for Gigabytes (1024*1024*1024 bytes), 30T for Terabytes (1024^4 bytes). Also P for Penta, etc...

Command tested under Linux.

xsel -bc
2015-02-26 01:11:03
User: benjabean1
1

Clears your clipboard if xsel is installed on your machine.

If your xsel is dumb, you can also use

xsel --clear --clipboard
awk '!NF || !seen[$0]++'
2015-02-25 17:03:13
User: Soubsoub
Functions: awk
1

Remove duplicate lines whilst keeping order and empty lines

sqlite3 ~/.mozilla/firefox/*.[dD]efault/places.sqlite "SELECT strftime('%d.%m.%Y %H:%M:%S', visit_date/1000000, 'unixepoch', 'localtime'),url FROM moz_places, moz_historyvisits WHERE moz_places.id = moz_historyvisits.place_id ORDER BY visit_date;"
2015-02-24 21:51:14
User: return13
5

This is the way to get access to your Firefox history...

lame -v 2 -b 192 --ti /path/to/file.jpg audio.mp3 new-audio.mp3
sed -n '/url/s#^.*url=\(.*://.*\)#\1#p' ~/.mozilla/firefox/*.[dD]efault/SDBackups/*.speeddial | sort | uniq
2015-02-17 20:56:28
User: return13
Functions: sed sort
0

For all users of https://addons.mozilla.org/de/firefox/addon/speed-dial/

jshon -e addons -a -e defaultLocale -e name -u < ~/.mozilla/firefox/*.[dD]efault/extensions.json
wget -q -O - http://www.example.com/automation/remotescript.sh | bash /dev/stdin parameter1 parameter2
2015-02-16 16:55:09
User: paulera
Functions: bash wget
-1

Use this command to execute the contents of http://www.example.com/automation/remotescript.sh in the local environment. The parameters are optional.

Alterrnatives to w3m:

curl -s http://www.example.com/automation/remotescript.sh | bash /dev/stdin param1 param2 w3m -dump http://www.example.com/automation/remotescript.sh | bash /dev/stdin [param1] [param2] lynx -source http://www.example.com/automation/remotescript.sh | bash /dev/stdin [param1] [param2]
cygstart --hide -wa runas powershell -WindowStyle Hidden -Command '"&{wevtutil el | foreach{wevtutil cl $_}}"'
2015-02-15 22:56:20
User: lowjax
2

Efficiently clear all Windows Event log entries from within a Cygwin terminal. Uses "cygstart" to launch a hidden "PowerShell" session passing a Powershell command to loop through and clear all Windows Event Log entries. Very useful for troubleshooting and debugging. The command should in theory elevate you session if needed.

One liner is based on the PowerShell command:

wevtutil el | foreach { wevtutil cl $_ }
sc query state= all | awk '/SERVICE_NAME/{printf"%s:",$2;getline;gsub(/DISP.*:\ /,"");printf"%s\n",$0}' | column -ts\:
2015-02-15 22:35:10
User: lowjax
Functions: awk column
1

Outputs Windows Services service name and display name using "sc query", pipes the output to "awk" for processing, then "column" for formatting.

List All Services:

sc query state= all | awk '/SERVICE_NAME/{printf"%s:",$2;getline;gsub(/DISP.*:\ /,"");printf"%s\n",$0}' | column -ts\:

List Started Services:

sc query | awk '/SERVICE_NAME/{printf"%s:",$2;getline;gsub(/DISP.*:\ /,"");printf"%s\n",$0}' | column -ts\:

List Stopped Services:

sc query state= inactive| awk '/SERVICE_NAME/{printf"%s:",$2;getline;gsub(/DISP.*:\ /,"");printf"%s\n",$0}' | column -ts\:
lsof -i -n -P | grep -e "$(ps aux | grep node | grep -v grep | awk -F' ' '{print $2}' | xargs | awk -F' ' '{str = $1; for(i = 2; i < NF; i++) {str = str "\\|" $i} print str}')"
2015-02-14 23:24:00
User: hochmeister
Functions: grep
0

us lsof, grep for any pid matching a given name such as "node".

ip -o -4 a s | awk -F'[ /]+' '$2!~/lo/{print $4}'
2015-02-13 11:19:31
User: paulera
Functions: awk
1

To show ipv6 instead, use [[ -6 ]] instead of [[ -4 ]]

ip -o -6 a s | awk -F'[ /]+' '$2!~/lo/{print $4}'

To show only the IP of a specific interface, in case you get more than one result:

ip -o -4 a s eth0 | awk -F'[ /]+' '$2!~/lo/{print $4}' ip -o -4 a s wlan0 | awk -F'[ /]+' '$2!~/lo/{print $4}'
command foo bar | sudo tee /etc/write-protected > /dev/null
git rev-list --all|tail -n1|xargs git show|grep -v diff|head -n1|cut -f1-3 -d' '
git rev-list --all|tail -n1|xargs git show|grep -v diff|head -n1|cut -f1-3 -d' '
sudo gpg --refresh-keys; sudo apt-key update; sudo rm -rf /var/lib/apt/{lists,lists.old}; sudo mkdir -p /var/lib/apt/lists/partial; sudo apt-get clean all; sudo apt-get update
using 3 thread to download some big file
git branch | grep -v "master" | sed 's/^[ *]*//' | sed 's/^/git branch -D /' | bash
2015-01-31 00:29:32
User: Trindaz
Functions: grep sed
Tags: git
1

Delete all your branches except master (useful after archiving branches)

git branch | grep -v "master" | sed 's/^[ *]*//' | sed 's/.*/& &/' | sed 's/^/git tag archive\//' | bash
2015-01-31 00:26:15
User: Trindaz
Functions: grep sed
Tags: git archive
0

Description by segments delimited by pipe (|)

1. List all git branches

2. Exclude master

3. Trim output and remove display elements such as * next to current branch

4. Repeat branch name after a space (output on each line: branch_name branch_name)

5. Prepend each line with the git tag command

6. Execute the output with bash

sysctl --system
2015-01-29 07:56:36
User: tankywoo
Functions: sysctl
4

Use `sysctl -p` without argument will only load /etc/sysctl.conf, but user configs always put in /etc/sysctl.d/*.conf, `sysctl --system` will load all the config files

udevadm info -q all -n /dev/sdc | grep ID_PATH | cut -d'-' -f 2 | xargs -n 1 lspci -s
2015-01-27 15:34:02
User: mhs
Functions: cut grep info lspci xargs
Tags: lspci udevadm
1

Useful for big systems with lots of cards.

(Update: does not work with USB disks)

lstopo -p -v --whole-system --whole-io output.svg
dmidecode --type 9 |egrep 'Bus Address|Designation'
2015-01-27 15:13:59
User: mhs
Functions: egrep
Tags: dmidecode
1

Recent hardware may or may not enumerate *both of* these values

aptitude --purge remove ~i^foo ~i^bar
2015-01-27 15:00:48
User: mhs
Tags: aptitude
1

Could be dangerous, if you have many packages all beginning with 'foo' or 'bar'. This will easily remove them all from your system.