Commands using head sorted by votes

Commands using head (314)

sorted by

Find top 5 big files

Find top 5 big files
This is sample output - yours may be different.
-3

find . -type f -exec ls -s {} \; | sort -n -r | head -5

opexxx · 2013-03-19 12:16:24 5
Pick a random line from a file

prints a random line
This is sample output - yours may be different.
-4

head -$(($RANDOM % $(wc -l < file.txt) +1 )) file.txt | tail -1

sharfah · 2009-07-23 12:00:49 3
Pick a random line from a file
This is sample output - yours may be different.
-4

shuf file.txt | head -n 1

lxtips · 2009-07-24 04:22:10 4
Get Futurama quotations from slashdot.org servers
This is sample output - yours may be different.
-4

echo -e "HEAD / HTTP/1.1\nHost: slashdot.org\n\n" | nc slashdot.org 80 | head -n5 | tail -1 | cut -f2 -d-

beerbrain · 2009-07-31 06:49:52 3
find out public ip address by using any host that have 'efingerd -n'

This is useful when you got a reserved IP address like 192.168.0.100 and want to find out what IP address is used to access the Internet. You have to know a server with 'efingerd -n' configured, like www.linuxbanks.cn as above. Other method to find out this information are for example access www.tell-my-ip.com and grep the output. The finger method have the advantage that it is easy to deploy a service like www.tell-my-ip.com, as you only need to get efingerd installed.
This is sample output - yours may be different.
-4

finger @www.linuxbanks.cn | grep -oE '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}' | head -n1

zhangweiwu · 2010-05-05 14:58:55 5
Blue Matrix

Matrix Screen HPUX
This is sample output - yours may be different.
-4

while :; do integer i=0; COL=$((RANDOM%$(tput cols))); ROW=$((RANDOM%$(tput cols))); while (( i <= COL)) do tput cup $i $ROW; echo "\033[1;34m" $(cat /dev/urandom | head -1 | cut -c1-1) 2>/dev/null; i=$(expr $i + 1); done done

mfrancime · 2010-05-28 11:17:43 3
Get the IP address

Get the first IPv4 address of an interface Show Sample Output
This is sample output - yours may be different.
```
192.168.253.52
```
-4

ip a s eth0 | grep "inet " | head -n 1 | awk '{print $2}' | cut -f1 -d'/'

thelan · 2012-07-16 07:54:43 3
Print just line 4 from a textfile
This is sample output - yours may be different.
-5

tail -n +4 | head -n 1

unixmonkey10745 · 2010-07-09 12:10:03 27
Go to the Nth line of file

Silly approach, but easy to remember... Show Sample Output
This is sample output - yours may be different.
```
tcpmux		1/tcp				# TCP port service multiplexer
```
-5

head -n 13 /etc/services | tail -n 1

muonIT · 2011-09-15 19:39:49 13
To print a specific line from a file

Tail is much faster than sed, awk because it doesn't check for regular expressions. Show Sample Output
This is sample output - yours may be different.
```
$ tail -n +5 /var/log/dmesg | head -n 1
[    0.000000] KERNEL supported cpus:
```
-5

tail -n +<N> <file> | head -n 1

qweqq · 2011-09-30 08:30:30 6
Print all the lines between 10 and 20 of a file
This is sample output - yours may be different.
-6

head -n 20 <filename> | tail

jamolkhon · 2010-11-15 13:08:12 4
Speak the last 3 tweets on Mac OS

You need curl.. and a Mac of course.
This is sample output - yours may be different.
-7

curl -s -u user:password http://twitter.com/statuses/friends_timeline.rss | grep title | sed -ne 's/<\/*title>//gp' | head -n 4 | say -v Bruce

sixtus · 2009-03-20 20:14:13 5
Print just line 4 from a textfile

tail -n X | head -n 1 prints a specific line, where X is the line number
This is sample output - yours may be different.
-7

tail -n 4 | head -n 1

puddy · 2010-07-08 19:50:06 3
Install and run when a command is not found

Work only with bash and apt-file installed. When it found an unknow command, it will search for a file named "scribus" (in my example), in a folder named bin and then install the corresponding package. After installation, it will run the command. Usefull juste after reinstalling linux and missing lot of package. Show Sample Output
This is sample output - yours may be different.
```
juluan@juluan-desktop ~ 21:56:04 [130] $ scribus
Lecture des listes de paquets... Fait
Construction de l'arbre des d?pendances       
Lecture des informations d'?tat... Fait
Les paquets suppl?mentaires suivants seront install?s?: 
  blt python-tk
Paquets sugg?r?s?:
  blt-demo tix python-tk-dbg scribus-template scribus-doc
Les NOUVEAUX paquets suivants seront install?s?:
  blt python-tk scribus
0 mis ? jour, 3 nouvellement install?s, 0 ? enlever et 3 non mis ? jour.
Il est n?cessaire de prendre 11,5Mo dans les archives.
Apr?s cette op?ration, 32,2Mo d'espace disque suppl?mentaires seront utilis?s.
Souhaitez-vous continuer [O/n]??
```
-7

function command_not_found_handle(){ apt-get install $( apt-file search "$1" | grep bin | grep -w "$1" | head -n1 | cut -d ':' -f 1 ) && $* ; }

Juluan · 2011-04-06 19:58:32 8
‹ First < 11 12 13

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.

Share Your Commands

Check These Out

for loop with leading zero in bash 3

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

encrypt whole line with ROT13 in vim

Find broken symlinks

Locate broken symlinks in the current directory. Also useful, to remove broken links: $ find . -type l ! -exec test -e {} \; -print0 | xargs -0 rm

Get information about memory modules

To take information about the characteristics of the installed memory modules.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Mount proc

Run this in / in a chroot to get your own proc there.

Check apache config syntax and restart or edit the file

Checks the apache configuration syntax, if is OK then restart the service otherwise opens the configuration file with VIM on the line where the configuration fails.

Generate an XKCD #936 style 4 word passphrase (fast)

This restricts things 3 ways: 1. No capitalized words, hence no proper names. 2. No apostrophes. 3. Restricts size to range (3,7)

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands using head

Commands using head (314) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands using head (314)

sorted by