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List the binaries installed by a Debian package

GNU grep's perl-compatible regular expression(PCRE).
This is sample output - yours may be different.
1

binaries () { dpkg -L "$1" | grep -Po '.*/bin/\K.*'; }

metropolis · 2019-10-05 10:52:15 0
List the binaries installed by a Debian package

This shell function displays a list of binaries contained in an installed package; works on Debian based Linux distributions. Show Sample Output
This is sample output - yours may be different.
```
$ binaries findutils
find
xargs
```
1

binaries () { for f in $(dpkg -L "$1" | grep "/bin/"); do basename "$f"; done; }

lordtoran · 2019-10-05 10:37:51 2
Convert tab separate file (TSV) to JSON with jq

With this command you can convert a tab separate file (TSV) into a JSON file with jq. For example, this input.tsv i-0b9adca882e5e6326 172.16.0.188 i-088dd69e5c3624888 172.16.0.102 i-0e70eac180537d4aa 172.16.0.85 will produce the showed output. Show Sample Output
This is sample output - yours may be different.
```
[
  {
    "id": "i-0b9adca882e5e6326",
    "ip": "172.16.0.188"
  },
  {
    "id": "i-088dd69e5c3624888",
    "ip": "172.16.0.102"
  },
  {
    "id": "i-0e70eac180537d4aa",
    "ip": "172.16.0.85"
  }
]
```
2

cat input.tsv | jq --raw-input --slurp 'split("\n") | map(split("\t")) | .[0:-1] | map( { "id": .[0], "ip": .[1] } )'

nordri · 2019-10-01 10:52:35 0

Top 10 Memory Processes

It displays the top 10 processes sorted by memory usage Show Sample Output

ps aux | sort -rk 4,4 | head -n 10

x3mboy · 2019-09-26 16:37:33 2

edit, view or execute last modified file with a single key-press

Copy this function to command line, press 'Enter' 'f'' 'Enter' to execute (sentence on the left written only for newbies). Hint 'e|x|v|1..9' in front of displayed last modified file name means: "Press 'e' for edit,'x' for execute,'v' for view or a digit-key '1..9' to touch one file from the recent files list to be last modified" and suggested (hidden files are listed too, else remove 'a' from 'ls -tarp' statement if not intended). If you find this function useful you can then rename it if needed and append or include into your ~/.bashrc config script. With the command . ~/.bashrc the function then can be made immediately available. In the body of the function modifications can be made, i.e. replaced joe editor command or added new option into case statement, for example 'o) exo-open $h;;' command for opening file with default application - or something else (here could not be added since the function would exceed 255 chars). To cancel execution of function started is no need to press Ctrl-C - if the mind changed and want to leave simple Enter-press is enough. Once defined, this function can with typeset -f f command be displayed in easy readable form Show Sample Output
This is sample output - yours may be different.
```
knoppix5@kanta:~/SKRIPTE$ f
...
1       rdiff_backup_to_sda3.txt
2       arrange_windows_simple_from_xfce_panel.txt
3       .config.sh
4       arrange_windows.txt
5       read1.sh
6       read3.sh
7       lsb.sh
8       board9.pgn
9       read4.sh
e|x|v|1..9 read4.sh?
```
2

f() { ls -lart;e="ls -tarp|grep -v /|tail -9";j=${e/9/1};g=${e/9/9|nl -nln};h=$(eval $j);eval $g;read -p "e|x|v|1..9 $(eval $j)?" -n 1 -r;case $REPLY in e) joe $h;;v)cat $h;;x) eval $h;;[1-9]) s=$(eval $g|egrep ^$REPLY) && touch "${s:7}" && f;;esac ; }

knoppix5 · 2019-09-26 11:58:37 0

Graphical tree of sub-directories with files

The command finds every item within the directory and edits the output so that subdirectories are and files are output much like the tree command Show Sample Output

find . -print | sed -e 's;[^/]*/;|-- ;g;s;-- |; |;g'

jonavon · 2019-09-25 17:49:35 0

restart Bluetooth from terminal
This is sample output - yours may be different.
-2

$ sudo systemctl restart bluetooth

jadnb · 2019-09-23 19:18:56 0
Hiding ur evil intent! Shame on you!

as a shell script, the possibilities are endless... #!/bin/bash echo doing something very evil! exit [2Aecho doing something very nice! Show Sample Output
This is sample output - yours may be different.
```
$ doing something very nice!
```
-1

echo 'doing something very evil' >/dev/null && echo doing something very nice!

LyscmdFUer · 2019-09-20 12:47:19 1
Write shell script without opening an editor

In this example, I’m creating a wrapper for apt-get that assumes yes every time — but the command could be anything.
This is sample output - yours may be different.
-1

sudo su -c “echo -e \”\x23\x21/usr/bin/sudo /bin/bash\napt-get -y \x24\x40\” > /usr/bin/apt-yes”

realkstrawn93 · 2019-09-19 16:28:33 0
Create backup copy of file, adding suffix of the date of the file modification (NOT today's date)

If your `date` command has `-r` option, you don't need `stat`
This is sample output - yours may be different.
3

cp file{,.$(date -r file "+%y%m%d")}

brx75x · 2019-09-19 09:42:38 0
Write a bootable Linux .iso file directly to a USB-stick

Writes hybrid ISO directly to USB stick; replace /dev/sdb with USB device in question and the ISO image link with the link of your choice
This is sample output - yours may be different.
4

wget -O /dev/sdb https://cdimage.ubuntu.com/daily-live/current/eoan-desktop-amd64.iso

realkstrawn93 · 2019-09-19 04:03:13 0
Check difference between two file directories recursively
This is sample output - yours may be different.
4

diff <(tree /dir/one) <(tree /dir/two)

redraw · 2019-09-19 01:33:08 1
Bitcoin Brainwallet Private Key Calculator
This is sample output - yours may be different.
0

(read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))

Jacki188 · 2019-09-15 21:31:52 0
Rsync using SSH and outputing results to a text file

--delete will delete copies on remote to match local if deleted on local --stats will output the results -z zip -a archive -A preserve ACL -x don't cross filesystem boundaries -h human readable -e specify the remote shell to use
This is sample output - yours may be different.
2

rsync --delete --stats -zaAxh -e ssh /local_directory/ username@IP_of_remote:/Remote_Directory/ > /Text_file_Directory/backuplog.txt

chicagonpg · 2019-09-10 21:00:29 0
Get a list of stale AWS security groups

AWS provides a method to audit for obsolete AWS security groups. From their documentation: "Describes the stale security group rules for security groups in a specified VPC. Rules are stale when they reference a deleted security group in a peer VPC, or a security group in a peer VPC for which the VPC peering connection has been deleted." Show Sample Output
This is sample output - yours may be different.
```
aws ec2 describe-stale-security-groups --vpc-id vpc-cafebabe
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-babebabe123414
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-095ce7acd7e772170
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-face1358
{
    "StaleSecurityGroupSet": []
}
```
0

aws ec2 describe-vpcs --query 'Vpcs[*].VpcId' --output text |xargs -t -n1 aws ec2 describe-stale-security-groups --vpc-id

vocatan · 2019-09-09 18:54:08 0
Create backup copy of file, adding suffix of the date of the file modification (NOT today's date)
This is sample output - yours may be different.
1

cp file{,.$(date -d @$(stat -c '%Y' file) "+%y%m%d")}

rgawenda · 2019-09-09 11:49:28 0
Perform Real-time Process Monitoring Using Watch Utility
This is sample output - yours may be different.
6

watch -n 1 'ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head'

wuziduzi · 2019-09-08 06:06:08 0
Rotate a video file by 90 degrees CW

Change video orientation in metadata only
This is sample output - yours may be different.
1

ffmpeg -i in.mov -c copy -metadata:s:v:0 rotate=90 out.mov

unixmonkey100988 · 2019-09-07 08:16:33 0
Ultra fast public IP address lookup using Cloudflare's 1.1.1.1
This is sample output - yours may be different.
1

curl -fSs https://1.1.1.1/cdn-cgi/trace | awk -F= '/ip/ { print $2 }'

skhaz · 2019-09-05 19:31:25 0
nmap get all active online ips from specific network

scan whole specific network for active online ips Show Sample Output
This is sample output - yours may be different.
```
192.168.1.79
192.168.1.82
192.168.1.83
192.168.1.84
192.168.1.86
192.168.1.87
192.168.1.89
192.168.1.94
192.168.1.97
192.168.1.100
192.168.1.101
192.168.1.104
192.168.1.110
192.168.1.119
192.168.1.120
```
6

nmap -n -sn 192.168.1.0/24 -oG - | awk '/Up$/{print $2}'

aysadk · 2019-09-04 13:31:53 0

Show whats going on restoring files from a spectrum protect backup

spectrum protect's dsmc command shows file names and total amount of restore. This command shows which files are actually open and their siz in GB and highlights the change to the previous output Show Sample Output

watch -n60 -d 'lsof -w /filesysname|grep -v NAME|awk '\''{$7=int($7/1073741824) " GB"; print $7, $9}'\'''

BodoGreif · 2019-09-02 11:49:20 0

Rotate a video file by 90 degrees CW

Transpose parameter: 0 = 90CounterCLockwise and Vertical Flip (default) 1 = 90Clockwise 2 = 90CounterClockwise 3 = 90Clockwise and Vertical Flip
This is sample output - yours may be different.
-1

ffmpeg -i in.mov -vf "transpose=1" out.mov

malathion · 2019-09-02 04:54:31 0
Get your public IP address using Amazon
This is sample output - yours may be different.
0

curl checkip.amazonaws.com

luissquall · 2019-08-29 23:12:41 0
Belgian banking "structured communication"

Derived from current time down to minutes. Show Sample Output
This is sample output - yours may be different.
```
+++190/8272/22249+++
```
1

DATE=`date +"%y%m%d%H%M"`; CHECKSUM=`printf "%02d" $((DATE%97))`; echo $DATE$CHECKSUM |sed -e 's#$[0-9]\{3\}$$[0-9]\{4\}$$[0-9]\{5\}$#+++\1/\2/\3+++#'

lowry · 2019-08-27 20:24:38 0
List all ubuntu installed packages in a single line

Use xargs command to make one line.
This is sample output - yours may be different.
0

dpkg --get-selections | grep -Evw 'deinstall$' | cut -f1 | sort -u | xargs

metropolis · 2019-08-26 15:57:52 0
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What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Indent all the files in a project using emacs

use -iname \*[.ch] instead of -iname \*.c -o -iname \*.h

Join lines

It's works only when you replace '\n' to ONE character.

Find usb device

I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

list block devices

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

get stdout to variable and stdout at sametime

Sometimes you want to write the script output to stdout but you need to send it to email. If you use: $ var="$( ls / )"; $ echo -e "$var"; works but, you need to wait the script terminate to bufferize then print the output var; With this way, you can use/work/print the output before the variable receive all the output content, then after it you can use the variable for anything else, like send email.

BASH: Print shell variable into AWK

Stream YouTube URL directly to MPlayer

A function for streaming youtube to mplayer. The option "-g" for youtube-dl tells it to output the direct video URL, instead of downloading the video. "-fs" tells MPlayer to go FullScreen, and "-quit" makes it less verbose. Requires: youdube-dl ( http://bitbucket.org/rg3/youtube-dl/ ) (Tested in zsh)

Get table column names from an MySQL-database in comma-seperated form

Copy with progress

save your current environment as a bunch of defaults

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