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Print failed units in systemd
This is sample output - yours may be different.
0

systemctl --failed | head -n -6 | tail -n -1

corpix · 2012-07-11 22:31:46 3
Find highest context switches

This command will find the highest context switches on a server and give you the process listing. Show Sample Output
This is sample output - yours may be different.
```
Context Switches: 1097211 - Process : [migration/12]
Context Switches: 1500058 - Process : [migration/10]
Context Switches: 1558813 - Process : [migration/13]
Context Switches: 2207748 - Process : [migration/11]
Context Switches: 2516720 - Process : /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/server.err --open-files-limit=12288 --pid-file=/var/lib/mysql/server.pid
```
0

grep -H voluntary_ctxt /proc/*/status |gawk '{ split($1,proc,"/"); if ( $2 > 10000000 ) { printf $2 " - Process : "; system("ps h -o cmd -p "proc[3]) } }' | sort -nk1,1 | sed 's/^/Context Switches: /g'

jperkster · 2012-09-01 19:43:47 54
create ec2 chef client

creates an ec2 instance, bootstraps with chef
This is sample output - yours may be different.
0

knife ec2 server create -r role[base],role[webserver] -E development -I ami-2a31bf1a -i ~/.ssh/aws-west.pem -x ec2-user --region us-west-2 -Z us-west-2b -G lamp --flavor t1.micro -N chef-client1 --no-host-key-verify

rwilson04 · 2012-11-06 00:08:18 4
Function to remove a directory from your PATH
This is sample output - yours may be different.
0

pathrm() { PATH=`echo $PATH | sed -re 's#(:|^)cde($|:)#:#g;s#^:##g;s#:$##g'`; }

sebbu · 2013-04-29 14:58:17 6
kworker issue. Phase 2. Clobbering the interrupt that is problematic

change gpeXX by the culprit you discovered on phase 1 In case of this example, the culprit is the biggest number, ie, gpe1C /sys/firmware/acpi/interrupts/ff_gbl_lock: 0 enabled /sys/firmware/acpi/interrupts/gpe01: 0 enabled /sys/firmware/acpi/interrupts/gpe06: 0 enabled /sys/firmware/acpi/interrupts/gpe17: 2 enabled /sys/firmware/acpi/interrupts/gpe18: 0 enabled /sys/firmware/acpi/interrupts/gpe1C: 19 enabled This procedure,if solved this universal issue all linix distros are experimenting for more than 2 years, may be included at startup, via cron. But try first commandline.
This is sample output - yours may be different.
0

echo "disable" > /sys/firmware/acpi/interrupts/gpeXX

m33600 · 2013-07-16 03:53:20 7
List all bash shortcuts

Shows all available keyboard bindings in bash. Pretty printing. Show Sample Output
This is sample output - yours may be different.
```
abort                                     "\C-g", "\C-x\C-g", "\e\C-g".
accept-line                               "\C-j", "\C-m".
backward-char                             "\C-b", "\eOD", "\e[D".
backward-delete-char                      "\C-h", "\C-?".
...
```
0

bind -P | grep -v "is not" | sed -e 's/can be found on/:/' | column -s: -t

leni536 · 2013-12-19 12:30:19 8
Change domain user password
This is sample output - yours may be different.
0

net user user_name new_password /domain

shawn_abdushakur · 2014-03-17 14:22:52 8
Gracefully close all windows of an application

This command will loop until the process no longer exists, calling closemainwindow() this is as if the user clicked the close window x in the upper right hand corner and gives the user an opportunity to save work in many applications like notepad and other things. The $'s are escaped for Cygwin, if you want to run the same command from the RUN box or cmd.exe shell then just unescape the $'s: powershell -Command "while ($true){Try{$process=Get-Process calc -ErrorAction Stop}Catch [Microsoft.PowerShell.Commands.ProcessCommandException]{break;}if ($process) {$whateva=$process.CloseMainWindow()}else {break;}Start-Sleep -m 500}" Show Sample Output
This is sample output - yours may be different.
```
powershell -Command "while (\$true){Try{\$process=Get-Process calc -ErrorAction Stop}Catch [Microsoft.PowerShell.Commands.ProcessCommandException]{break;}if (\$process) {\$whateva=\$process.CloseMainWindow()}else {break;}Start-Sleep -m 500}"
[1]+  Done                    calc
```
0

powershell -Command "while (\$true){Try{\$process=Get-Process firefox -ErrorAction Stop}Catch [Microsoft.PowerShell.Commands.ProcessCommandException]{break;}if (\$process) {\$whateva=\$process.CloseMainWindow()}else {break;}Start-Sleep -m 500}"

adanisch · 2014-07-04 11:06:22 14
Change caps lock to backspace (Works on Ubuntu 14.04)

The internet is full of advice about how to change the caps lock key into a backspace key (a useful practice that originated with Colemak), but a lot of instructions are complicated or outdated. After *lots* of searching for something that still worked on Ubuntu 14.04, I finally found that this simple command is sufficient and takes effect immediately. (Found at: http://www.howtogeek.com/194705/how-to-disable-or-reassign-the-caps-lock-key-on-any-operating-system/ )
This is sample output - yours may be different.
0

setxkbmap -option caps:backspace

lgarron · 2014-10-27 22:53:39 8
change the volume with the pront

to run write: Sound-volume 30% or Sound-volume 1% Sound-volume 100% Show Sample Output
This is sample output - yours may be different.
```
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 45876 [70%] [on]
  Front Right: Playback 45876 [70%] [on]
```
0

alias Sound-volume='amixer -D pulse sset Master '

asdzxc · 2015-02-08 11:36:44 8
Copy uncommitted changes to remote git repository

Copy changed files from the remote git repository, _including binary ones_, staged and unstaged alike. Note that this command doesn't handle deleted files properly. The reverse of the excellent command by Ivan.
This is sample output - yours may be different.
0

git diff --name-only HEAD | cpio -o -Hnewc --quiet | ssh HOST '(cd REPO_DIR && cpio -iduv --quiet -Hnewc)'

vinayakgadkari · 2018-10-28 18:04:00 514
rcsdiff: Output the differences side-by-side

Use -W to adjust the width of the output, and --suppress-common-lines to show only the lines that have been changed.
This is sample output - yours may be different.
0

rcsdiff -y myfile

dbh · 2010-06-14 15:49:42 4
Updates file in all the zips

- all zips are in current folder - FILENAME is file name that should be subsitute in all zips (new version of this file is in current folder)
This is sample output - yours may be different.
0

ls *.zip|awk '{$a="zip -fo "$1" FILENAME"; system($a);}'

youkey · 2011-07-27 10:22:21 22
Create tarball of files modified in git
This is sample output - yours may be different.
0

tar czf git_mods_circa_dec23.tgz --files-from <(git ls-files -m)

jemptymethod · 2011-12-23 15:31:21 4
SSH to remote machine and cd to a specific directory

Changes machine and cd to specific directory Add to .*shrc Usage : sshto
This is sample output - yours may be different.
0

alias sshto 'ssh -X -t \!:1 "cd \!:2 ; tcsh"'

pranavkn · 2012-03-20 20:07:37 10
Generate debian package without signing and only binaries
This is sample output - yours may be different.
0

dpkg-buildpackage -b -rfakeroot -us -uc

DavidAlfonso · 2012-05-04 09:48:46 3
Extract any archive

Part of the "atool" package
This is sample output - yours may be different.
0

aunpack foo.tar.bz2

tebeka · 2012-07-11 22:53:18 3
add untracked/changed items to a git repository before doing a commit and/or sending upstream

I came up with this because I don't have a problem remembering the big major changes I made deep inside my tree for a specific feature or bugfix but always manage to forget the trivial stuff I tweaked or touched along the way that needs to get pushed as well. Show Sample Output
This is sample output - yours may be different.
```
bash-3.2$ git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'
git add Android/
git add Docs/
bash-3.2$bash-3.2$ git status
# On branch dev
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#       new file:   Android/.classpath
#       new file:   Android/.project
#       new file:   Android/AndroidManifest.xml
```
0

git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'|sh

jetdillo · 2012-09-03 00:09:04 5
add role to chef node

add role to chef node
This is sample output - yours may be different.
0

knife node run_list add first-client "role[base]"

rwilson04 · 2012-11-06 00:09:53 5
Tweet your status from the command line

Get twurl: sudo gem install twurl Create a twitter app with write permissions: http://twitter.com/oauth_clients Setup twurl to do oAuth twurl authorize --consumer-key some_key_without_quotes --consumer-secret some_secret_without_quotes # goto the url you see and paste the PIN in the command line Then you can tweet the above command Using twurl to do oAuth
This is sample output - yours may be different.
0

twurl /1/statuses/update.json -d status="$1"

joeheyming · 2013-01-09 18:59:12 5
Fetch all GPG keys that are currently missing in your keyring

The original command doesn't work for me - does something weird with sed (-r) and xargs (-i) with underscores all over... This one works in OSX Lion. I haven't tested it anywhere else, but if you have bash, gpg and perl, it should work. Show Sample Output
This is sample output - yours may be different.
```
gpg: requesting key E8D80906 from hkp server keys.gnupg.net
gpg: key E8D80906: public key "Ayush Sharma <ayush.cena@gmail.com>" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg:               imported: 1
gpg: requesting key EFFF0243 from hkp server keys.gnupg.net
gpg: key EFFF0243: public key "GSWoT:US10 (www.gswot.org)" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
```
0

for i in `gpg --list-sigs | perl -ne 'if(/User ID not found/){s/^.+([a-fA-F0-9]{8}).*/\1/; print}' | sort | uniq`; do gpg --keyserver-options no-auto-key-retrieve --recv-keys $i; done

hank · 2013-03-10 09:15:15 5
Open (in vim) all modified files in a git repository

Opens all files in the index (modified plus not added yet) in tabs in vim.
This is sample output - yours may be different.
0

vim -p `git --porcelain | awk {print $2}`

cnelsonsic · 2013-04-29 21:52:23 6
pngcrush all .png files in the directory structure

Find's all png's in the current folder and all of its children pngcrushes all results. Destructive.
This is sample output - yours may be different.
0

find -f . png | while read line; do pngcrush -ow -brute $line; done

mildfuzz · 2013-09-25 13:40:14 6
decode uri

quick script for url form-decoding Show Sample Output
This is sample output - yours may be different.
```
# bootstrap with apt-get install chicken-bin && chicken-install -s uri-common

http%3A%2F%2Fopml.radiotime.com%2FTune.ashx%3Fid%3Ds6896%26filter%3Ds%3Apopular
http://opml.radiotime.com/Tune.ashx?id=s6896&filter=s:popular
```
0

csi -R uri-common -p '(uri-decode-string (read-line))'

kristianlm · 2014-07-04 11:22:02 15
List all groups
This is sample output - yours may be different.
0

cut -d: -f1 /etc/group | sort

sharezlinux · 2014-10-28 08:18:45 6
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Convert all WMF images to SVG recursively ignoring file extension case

This assumes you have the package installed necessary for converting WMF files. On my Ubuntu box, this is libwmf-bin. I used this command, as libwmf is not on my wife's iMac, so I archived the directories containing the WMF files from OS X, ran them on my Ubuntu box, archived the resulting SVGs, and sent them back to her. Quick, simple and to the point. Searches directories recursively looking for extensions ignoring case. This is much more readable and clean than -exec for find. The while loop also gives further flexibility on complex logic. Also, although there is 'wmf2svg --auto', it expects lowercase extensions, and not uppercase. Because I want to ignore case, I need to use the -o option instead. Works in ZSH and BASH. Haven't tested in other shells.

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

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"

port forwarding

pem file used by AWS servers for additional security

Securely stream (and save) a file from a remote server

Securely stream a file from a remote server (and save it locally). Useful if you're impatient and want to watch a movie immediately and download it at the same time without using extra bandwidth. This is an extension of snipertyler's idea. Note: This command uses an encrypted connection, unlike the original.

Exclude svn directories with grep

exclude-dir option requires grep 2.5.3

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" }

get a desktop notification from the terminal

tired of switching to the console to check if some command has finished yet? if notify-send does not work on your box try this one... e.g. rsync -av -e /usr/bin/lsh $HOME slowconnection.bar:/mnt/backup ; z (now fire up X, do something useful, get notified if this stuff has finished).

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

Instant mirror from your laptop + webcam

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