Commands using head sorted by votes

Commands using head (314)

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a function to find the fastest DNS server

http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list. Show Sample Output
This is sample output - yours may be different.
```
12.876  200.187.95.4
```
1

curl -s http://public-dns.info/nameserver/br.csv| cut -d, -f1 | xargs -i timeout 1 ping -c1 -w 1 {} | grep time | sed -u "s/.* from $[^:]*$.*time=$[^ ]*$.*/\2\t\1/g" | sort -n | head -n1

glaudiston · 2017-02-02 12:00:38 20
ram usage most top 10 process
This is sample output - yours may be different.
1

ps aux | awk '{print $2, $4, $11}' | sort -k2rn | head -n 10

aysadk · 2017-09-19 19:40:49 18
Generate Random Text based on Length

Random text of length "$1" without the useless cat command.
This is sample output - yours may be different.
1

genRandomText() { tr -cd '[:alpha:]' < /dev/urandom | head -c "$1"; }

SouthwindCG · 2018-06-05 03:41:14 223
Print the 16 most recent RPM packages installed in newest to oldest order
This is sample output - yours may be different.
1

rpm -qa --last | head -n 16

sparsile · 2018-09-13 02:55:51 341
Show OS release incl version.

Show Sample Output
This is sample output - yours may be different.
```
Gentoo Base System release 2.6
```
1

grep -m1 -h [0-9] /etc/{*elease,issue} 2>/dev/null | head -1

wuseman1 · 2018-11-12 18:01:57 660
get a list of top 1000 sites from alexa

a little bit smarter & i only want .de domains, so ..... Show Sample Output
This is sample output - yours may be different.
```
amazon.de
google.de
ebay.de
ebay-kleinanzeigen.de
spiegel.de
web.de
bild.de
t-online.de
poe.trade
mobile.de
chip.de
```
1

curl -qsSl http://s3.amazonaws.com/alexa-static/top-1m.csv.zip 2>/dev/null | zcat | grep ".de$" | head -1000 | awk -F, '{print $2}'

dbiesecke · 2019-06-12 02:48:42 35
Find out how much ram memory has your video (graphic) card
This is sample output - yours may be different.
1

glxinfo |grep -i -o 'device|memory\|[0-9]\{1,12\} MB'|head -n 1

wuseman1 · 2020-09-14 02:12:47 767
Compute newest kernel version from Makefile on Torvalds' git repository

The platform-agnostic version of https://www.commandlinefu.com/commands/view/25276/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository because macOS doesn't have wget installed
This is sample output - yours may be different.
1

curl -s -o - https://raw.githubusercontent.com/torvalds/linux/master/Makefile | head -n5 | grep -E '\ \=\ [0-9]{1,}' | cut -d' ' -f3 | tr '\n' '.' | sed -e "s/\.$//"

realkstrawn93 · 2023-08-10 22:25:55 228
mem leak check

sh as: #! /bin/sh while [ 1 -ne 6 ]; do pid=`ps -ef | grep -v "grep" | grep "trans_gzdy" | cut -c10-17` ps gv $pid | head -2 sleep 1 done check changes of RSS. Show Sample Output
This is sample output - yours may be different.
```
PID    TTY STAT  TIME PGIN  SIZE   RSS   LIM  TSIZ   TRS %CPU %MEM COMMAND
 651368      - A     0:00    1  3360  3860 327680   255   500  0.0  0.0 trans_gz
```
0

ps gv [pid] | head -2

ren · 2009-02-12 05:04:55 9
A bash function to show the files most recently modified in the named (or current) directory

Coming back to a project directory after sometime elsewhere? Need to know what the most recently modified files are? This little function "t" is one of my most frequent commands. I have a tcsh alias for it also: alias t 'ls -ltch \!* | head -20' Show Sample Output
This is sample output - yours may be different.
```
% t
total 79768
drwxr-xr-x  79 aks   staff   2.6K Feb 24 23:38 aspell6-en-6.0-0/
drwxr-xr-x@ 53 aks   staff   1.8K Feb 24 23:21 aspell-0.60.6/
-rw-r--r--@  1 aks   staff   1.7M Feb 24 23:14 aspell-0.60.6.tar.gz
drwxr-xr-x   3 aks   staff   102B Dec 15 23:24 finance/
drwxr-xr-x   4 aks   staff   136B Dec  9 14:29 dev/
drwxr-xr-x  12 aks   staff   408B Aug 28  2008 db/
drwxr-xr-x   4 aks   staff   136B Aug  7  2008 Palm/
drwxr-xr-x  26 aks   staff   884B Jan 28  2008 web/
```
0

function t { ls -ltch $* | head -20 ; }

totoro · 2009-03-25 20:05:52 8
Show the ordered header line (with field names) of a CSV file

This little command (function) shows the CSV header fields (which are field names separated by commas) as an ordered list, clearly showing the fields and their order. Show Sample Output
This is sample output - yours may be different.
```
% headers table.csv 
    1	Date
    2	Open
    3	High
    4	Low
    5	Close
    6	Volume
    7	Adj Close
```
0

function headers { head -1 $* | tr ',' '\12' | pr -t -n ; }

totoro · 2009-03-25 20:07:47 14
Tail the most recently modified file
This is sample output - yours may be different.
0

ls -t1 | head -n1 | xargs tail -f

patko · 2009-07-29 13:46:29 5
skipping five lines, at top, then at bottom

Strangely enough, there is no option --lines=[negative] with tail, like the head's one, so we have to use sed, which is very short and clear, you see. Strangely more enough, skipping lines at the bottom with sed is not short nor clear. From Sed one liner : # delete the last 10 lines of a file $ sed -e :a -e '$d;N;2,10ba' -e 'P;D' # method 1 $ sed -n -e :a -e '1,10!{P;N;D;};N;ba' # method 2 Show Sample Output
This is sample output - yours may be different.
```
6 7 8 9 10 11 12
1 2 3 4 5 6 7
```
0

seq 1 12 | sed 1,5d ; seq 1 12 | head --lines=-5

flux · 2009-08-01 00:41:52 8
List files and sizes

List files and sizes
This is sample output - yours may be different.
0

find / -type f -exec wc -c {} \; | sort -nr | head -100

hemanth · 2009-08-22 09:38:44 10
Download entire commandlinefu archive to single file

This is an extension of a previous command by satyavvd on 2009-07-23 12:04:02, but this one grabs the whole archive. Hard coded numbers in previous script capped number of commands that could be fetched. This one grabs them all regardless of how big the archive gets. Show Sample Output
This is sample output - yours may be different.
```
# SSH connection through host in the middle
ssh -t reachable_host ssh unreachable_host

# A fun thing to do with ram is actually open it up and take a peek. This command will show you all the string (plain text) values in ram
sudo dd if=/dev/mem | cat | strings

# Watch Star Wars via telnet
telnet towel.blinkenlights.nl

# Backticks are evil
echo "The date is: $(date +%D)"
```
0

for x in `jot - 0 \`curl "http://www.commandlinefu.com/commands/browse"|grep "Terminal - All commands" |perl -pe 's/.+(\d+),(\d+).+/$1$2/'|head -n1\` 25`; do curl "http://www.commandlinefu.com/commands/browse/sort-by-votes/plaintext/$x" ; done >a.txt

stinkerweed999 · 2009-08-25 21:57:15 6
Outputs a 10-digit random number

Makes use of $RANDOM environment variable.
This is sample output - yours may be different.
0

head -c10 <(echo $RANDOM$RANDOM$RANDOM)

jgc · 2009-10-09 15:09:02 6
Sort movies by length, longest first

Similar but using mediainfo instead of totem-something
This is sample output - yours may be different.
0

for i in *.avi; do echo -n "$i:";mediainfo $i|head | grep PlayTime | cut -d: -f2 ; done | sort -t: -k2 -r

yooreck · 2009-11-09 12:42:20 3
Create unique email addresses directly from the US census site*Full command in comments

** Replace the ... in URLS with: www.census.gov/genealogy/www/data/1990surnames Couldn't fit in 256 Created on Ubuntu 9.10 but nothing out of the ordinary, should work anywhere with a little tweaking. 5163 is the number of unique first names you get when combine the male and female first name files from. http://www.census.gov/genealogy/www/data/1990surnames/names_files.html Show Sample Output
This is sample output - yours may be different.
```
stasia.palmer@test.domain
mozell.sybounheuan@test.domain
yuki.nypaver@test.domain
annamae.tilbury@test.domain
jaimee.warfield@test.domain
cassidy.mchugh@test.domain
daniele.makey@test.domain
ivelisse.besancon@test.domain
marylin.kocher@test.domain
```
0

paste -d "." <(curl http://.../dist.female.first http://.../dist.male.first | cut -d " " -f 1 | sort -uR) <(curl http://..../dist.all.last | cut -d " " -f 1 | sort -R | head -5163) | tr "[:upper:]" "[:lower:]" | sed 's/$/@test.domain/g'

connorsy · 2010-01-21 19:52:28 3
Update the working tree to the latest git commit
This is sample output - yours may be different.
0

git log -g --pretty=oneline | grep '}: commit' | awk '{print $1}' | head -1 | xargs git checkout -f

jimthunderbird · 2010-03-09 16:56:39 3
Generate an over-the-top UUID

first off, if you just want a random UUID, here's the actual command to use: uuidgen Your chances of finding a duplicate after running this nonstop for a year are about the same as being hit by a meteorite before finishing this sentence The reason for the command I have is that it's more provably unique than the one that uuidgen creates. uuidgen creates a random one by default, or an unencrypted one based on time and network address if you give it the -t option. Mine uses the mac address of the ethernet interface, the process id of the caller, and the system time down to nanosecond resolution, which is provably unique over all computers past, present, and future, subject to collisions in the cryptographic hash used, and the uniqueness of your mac address. Warning: feel free to experiment, but be warned that the stdin of the hash is binary data at that point, which may mess up your terminal if you don't pipe it into something. If it does mess up though, just type reset Show Sample Output
This is sample output - yours may be different.
```
7d9afbd91e49e265841c0d6c953e964a
```
0

printf $(( echo "obase=16;$(echo $$$(date +%s%N))"|bc; ip link show|sed -n '/eth/ {N; p}'|grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'|head -c 17 )|tr -d [:space:][:punct:] |sed 's/[[:xdigit:]]\{2\}/\\x&/g')|sha1sum|head -c 32; echo

camocrazed · 2010-07-14 14:04:53 10
Play 2600 off the hook over ssh

Ever wanted to stream your favorite podcast across the network, well now you can. This command will parse the iTunes enabled podcast and stream the latest episode across the network through ssh encryption. Show Sample Output
This is sample output - yours may be different.
```
High Preformance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2 and 3.
Version 0.59s-mh4 (2000/Oct/27). Written and copyrights by Michael Hipp.
Uses code from various people. See 'README' for more!
THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!

Playing MPEG stream from standard input ...
Found new ID3 Header
MPEG 2.0 layer III, 64 kbit/s, 22050 Hz joint-stereo
```
0

curl -L -s `curl -s http://www.2600.com/oth-broadband.xml` | xmlstarlet sel -t -m "//enclosure[1]" -v "@url" -n | head -n 1` | ssh -t [user]@[host] "mpg123 -"

denzuko · 2010-07-30 23:20:50 3
Play a podcast via XPath and mpg123

Gets the latest podcast show from from your favorite Podcast. Uses curl and xmlstarlet. Make sure you change out the items between brackets.
This is sample output - yours may be different.
0

curl -L -s `curl -s [http://podcast.com/show.rss]` | xmlstarlet sel -t -m "//enclosure[1]" -v "@url" -n | head -n 1` | ssh -t [user]@[host] "mpg123 -"

denzuko · 2010-07-31 00:17:47 3
Random mrxvt background

Simple way of having random mrxvt backgrounds. Add this to your bashrc and change the path names for the pictures.
This is sample output - yours may be different.
0

LIST="/some/pic/file /another/picture /one/more/pic"; PIC=$(echo $LIST | sed s/"\ "/"\n"/g | shuf | head -1 | sed s/'\/'/'\\\/'/g ); sed -i s/Mrxvt.Pixmap:.*/"Mrxvt.Pixmap:\t$PIC"/ ~/.mrxvtrc

dog · 2010-08-23 10:17:42 3
Get the latest Geek and Poke comic
This is sample output - yours may be different.
0

wget -q $(lynx --dump 'http://geekandpoke.typepad.com/' | grep '\/.a\/' | grep '\-pi' | head -n 1 | awk '{print $2}') -O geekandpoke.jpg

tersmitten · 2010-09-07 12:15:36 3
Get the amount of users currently registered at the DudaLibre.com Linux Counter.
This is sample output - yours may be different.
0

curl --silent http://www.dudalibre.com/gnulinuxcounter?lang=en | grep users | head -2 | tail -1 | sed 's/.*<strong>//g' | sed 's/<\/strong>.*//g'

hunterm · 2010-10-07 04:12:45 3
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Git Tree Command with color and tag/branch name

change directory to actual path instead of symlink path

If you use symlinks a lot, especially nested symlinks, this puts you back on the absolute path to command-line-fu-nirvana. (Note the backticks around pwd).

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"

Makes the permissions of file2 the same as file1

Also works with: $chgrp --reference file1 file2 $chown --reference file1 file2

get a random command

This command will show an random command. this is useful if you want to explore various random commands.

Shows size of dirs and files, hidden or not, sorted.

Enhanced version: fixes sorting by human readable numbers, and filters out non MB or GB entries that have a G or an M in their name.

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"

Extract android adb ab backup to tar format (only works for non encrypted backups)

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"

Show Apt/Dpkg configuration

Shows all configurations to apt and dpkg, rarely changed, you probably still have the default configuration. Go ahead and explore your configuration if you dare, perhaps change your apt-cache directory, Dir::Cache "var/cache/apt/"; or the names of the log files.

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Commands using head (314)

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