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Commands using head from sorted by
Terminal - Commands using head - 244 results
cat /dev/urandom | env LC_CTYPE=C tr -dc a-zA-Z0-9 | head -c 16; echo
2014-02-05 15:04:07
User: yakovlev
Functions: cat env head tr
Tags: password random generate mac os x
0
Up
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Generate random password on Mac OS X

Feel free to put this in your ~/.profile:

random(){ cat /dev/urandom | env LC_CTYPE=C tr -dc $1 | head -c $2; echo; }

Then use it to generate passwords:

random [:alnum:] 16

Or DNA sequences:

random ACGT 256
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wget -q -O- http://bitinfocharts.com/markets/btc-e/btc-usd.html |grep -o -P 'lastTrade">([0-9]{1,})(.){0,1}[0-9]{0,}' |grep -o -P '(\d)+(\.){0,1}(\d)*' |head -n 1
2014-01-25 23:40:00
User: peter1337
Functions: grep head wget
Tags: wget grep bitcoin btc
0
Up
Down
grep BTC last trading price from BTC-E, but u can change it.. they got em all
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sysctl -a | grep boottime | head -n 1
2014-01-24 13:03:48
User: lgarron
Functions: grep head sysctl
Tags: osx
1
Up
Down
Find last reboot time

Specific to OSX.

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phpunit --log-json php://stdout | awk '$NF ~ '/,/' && $1 ~ /"(test|time)"/' | cut -d: -f2- | sed "N;s/\n/--/" | sed "s/,//"| awk 'BEGIN{FS="--"}; {print $2 $1}' | sort -r | head -n 5
2014-01-24 12:50:02
User: adri
Functions: awk cut head sed sort
Tags: PHP phpunit
0
Up
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PHPUnit: Show the 5 slowest tests with their runtime
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curl -s -k https://www.kernel.org/feeds/kdist.xml | sed -n -e 's@.*<guid>\(.*\)</guid>.*@\1@p' | grep 'stable' | head -1 | awk -F , '{print $3}'
2013-12-17 23:59:27
User: Wafelijzer
Functions: awk grep head sed
Tags: kernel
0
Up
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Get current stable kernel version string from kernel.org

Fetches latest stable release version from first entry between tags

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wget "us.download.nvidia.com$(wget -qO- "$(wget -qO- "nvidia.com/Download/processFind.aspx?psid=95&pfid=695&osid=19&lid=1&lang=en-us"|awk '/driverResults.aspx/ {print $4}'|cut -d "'" -f2|head -n 1)"|awk '/url=/ {print $2}'|cut -d '=' -f3|cut -d '&' -f1)"
2013-11-21 03:04:59
User: lowjax
Functions: awk cut head wget
Tags: windows sed awk wget cut nvidia drivers x64 geforce
1
Up
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Download latest NVIDIA Geforce x64 Windows driver

Download latest NVIDIA Geforce x64 Windows7-8 driver from Nvidia's website. Pulls the latest download version (which includes beta). This is the "English" version. The following command includes a 'sed' line to replace "english" with "international" if needed. You can also replace the starting subdomain with "eu." "uk." and others. Enjoy this one liner! 1 character under the max :)

wget "us.download.nvidia.com$(wget -qO- "$(wget -qO- "nvidia.com/Download/processFind.aspx?psid=95&pfid=695&osid=19&lid=1&lang=en-us" | awk '/driverResults.aspx/ {print $4}' | cut -d "'" -f2 | head -n 1)" | awk '/url=/ {print $2}' | sed -e "s/english/international/" | cut -d '=' -f3 | cut -d '&' -f1)"
Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
base64 /dev/urandom | head -c 33554432 | split -b 8192 -da 4 - dummy.
2013-11-12 17:56:23
User: pdxdoughnut
Functions: head split
Tags: random split base64 dummy file, null file, test file /dev/urandom
9
Up
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Create a bunch of dummy text files

Avoiding a for loop brought this time down to less than 3 seconds on my old machine. And just to be clear, 33554432 = 8192 * 4086.

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for i in {1..4096}; do base64 /dev/urandom | head -c 8192 > dummy$i.rnd ; done
2013-11-12 00:36:10
User: pdxdoughnut
Functions: head
Tags: random base64 for loop dummy file, null file, test file /dev/urandom
1
Up
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Create a bunch of dummy text files

Using the 'time' command, running this with 'tr' took 28 seconds (and change) each time but using base64 only took 8 seconds (and change). If the file doesn't have to be viewable, pulling straight from urandom with head only took 6 seconds (and change)

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for i in `seq 1 4096`; do tr -dc A-Za-z0-9 </dev/urandom | head -c8192 > dummy$i.rnd; done
2013-11-11 21:27:15
User: TuxOtaku
Functions: head tr
Tags: random for loop dummy file, null file, test file /dev/urandom
1
Up
Down
Create a bunch of dummy text files
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echo $(< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c10)
2013-11-07 21:51:38
User: santizo
Functions: echo head tr
0
Up
Down
Generate a random password.

Uses urandom and tr to generate a random password. Change the value of head -c## for the lenght of the password.

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wget --no-check-certificate https://www.kernel.org/$(wget -qO- --no-check-certificate https://www.kernel.org | grep tar | head -n1 | cut -d\" -f2)
2013-11-07 18:46:14
User: glaudiston
Functions: cut grep head tar wget
0
Up
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Download current stable kernel version from kernel.org

Access www.kernel.org and download the last stable linux kernel release.

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find . -name '*pdf*' -print0 | xargs -0 ls -lt | head -20
2013-10-03 21:58:51
User: fuats
Functions: find head ls xargs
Tags: last, modfiied find xargs
1
Up
Down
Prints the latest modified files in a directory tree recursively

Sorts by latest modified files by looking to current directory and all subdirectories

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du -ah | sort -hr | head -n50 | cat -n
2013-10-01 10:16:13
User: rgregor
Functions: cat du head sort
0
Up
Down
Display a numbered list of 50 biggets files sorted by size (human readable)
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head -c 24 /dev/urandom | base64
2013-09-28 16:32:47
User: henix
Functions: head
Tags: random
0
Up
Down
Generate a random password 30 characters long

Use less random number resources and less commands

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shuf /usr/share/dict/words |grep "^[^']\{3,6\}$" |head -n4 | sed -e "s/\b\(.\)/\u\1/g" | tr -d '\n'; echo
2013-09-06 03:05:31
User: chijonutor
Functions: grep head sed tr
Tags: tr xkcd shuf
0
Up
Down
Generate an XKCD #936 style 4 word password

Took one of the samples, added capitalization and removes in between spaces.

The final "echo" is just for readability.

Cheers

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host example.com | head -1 | awk '{print $4}'
2013-09-05 22:20:49
User: wes
Functions: awk head host
Tags: awk tail ip address nslookup url
0
Up
Down
Get IP address from domain
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nslookup www.example.com | tail -2 | head -1 | awk '{print $2}'
2013-09-05 20:26:45
User: wsams
Functions: awk head nslookup tail
Tags: awk tail ip address nslookup url
1
Up
Down
Get IP address from domain

I'm not sure how reliable this command is, but it works for my needs. Here's also a variant using grep.

nslookup www.example.com | grep "^Address: " | awk '{print $2}'

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psgrep() { ps aux | tee >(head -1>&2) | grep -v " grep $@" | grep "$@" -i --color=auto; }
2013-08-02 12:44:32
User: fnl
Functions: grep head ps tee
Tags: grep ps
0
Up
Down
psgrep(command)

Pipes the header row of ps to STDERR, then greps for the command on the output of ps, removing the grep entry before that.

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find /logs -ls -xdev | sort -nrk 7 | head -10
2013-07-22 08:36:03
User: vidya99343
Functions: find head sort
0
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Find Largest files of mount point

bash-3.2$ find /logs -ls -xdev | sort -nrk 7 | head -10

1761905 205380 -rwxrwxr-x 1 wsadmin logadmin 210095353 Jul 22 01:33 /logs/intlpymt/Trace.log

652689 187360 -rwxrwxr-x 1 wsadmin logadmin 191663182 Jul 21 23:00 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut_13.07.21_23.00.12.log

2380449 186536 -rwxrwxr-x 1 wsadmin logadmin 190819939 Jul 16 14:03 /logs/omset/traceIntl.log.201307161403.lppwa1213.gz

2119524 183888 -rwxrwxr-x 1 wsadmin logadmin 188110111 Jul 22 01:33 /logs/intlpymt/intlpymtria/Trace.log

652816 160332 -rwxrwxr-x 1 wsadmin logadmin 164011871 Aug 14 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_08142012.gzip

653312 128916 -rwxrwxr-x 1 wsadmin logadmin 131873943 Jul 18 10:49 /logs/websphere/heapdump.20130718.104150.27592.0006.phd.201307181406.lppwa1213.gz

653320 128916 -rwxrwxr-x 1 wsadmin logadmin 131873735 Jul 18 10:40 /logs/websphere/heapdump.20130718.104012.27592.0002.phd.201307181406.lppwa1213.gz

653309 128912 -rwxrwxr-x 1 wsadmin logadmin 131867602 Jul 18 10:46 /logs/websphere/heapdump.20130718.104008.27592.0001.phd.201307181405.lppwa1213.gz

653323 128872 -rwxrwxr-x 1 wsadmin logadmin 131828157 Jul 18 10:41 /logs/websphere/heapdump.20130718.104109.27592.0004.phd.201307181407.lppwa1213.gz

652783 120288 -rwxrwxr-x 1 wsadmin logadmin 123047750 Aug 13 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_0813.2012.gzip

bash-3.2$

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find /logs -ls -xdev | sort -nrk 7 | head -10
2013-07-22 08:34:28
User: vidya99343
Functions: find head sort
0
Up
Down
Find Largest files of mount point
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head -c20 /dev/urandom | xxd -ps
2013-07-16 10:14:21
User: opexxx
Functions: head
Tags: HEAD urandom
-1
Up
Down
20char long alpahnumeric "password"

20characters long alpahnumeric "password"

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
history | awk '{CMD[$4]++;count++;} END { for (a in CMD )print CMD[a] " " CMD[a]/count*100 "% " a }' | sort -nr | nl | column -t | head -n 10
2013-07-05 02:38:04
User: jasee
Functions: awk column head nl sort
0
Up
Down
statistic of the frequnce of your command from your history&#12290;

perhaps you should use CMD[$2] instead of CMD[$4]

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du -xB M --max-depth=2 /var | sort -rn | head -n 15
2013-05-23 10:45:21
User: bouktin
Functions: du head sort
Tags: bash Linux du
2
Up
Down
list the top 15 folders by decreasing size in MB

list the top 15 folders by decreasing size in MB

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awk '{print $1}' ~/.bash_history | sort | uniq -c | sort -rn | head -n 10
2013-05-03 16:24:30
User: nesses
Functions: awk head sort uniq
Tags: sort awk uniq head,
1
Up
Down
most used unix commands
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awk '{ print $9 }' access.log | sort | uniq -c | sort -nr | head -n 10
2013-05-02 09:23:26
User: cuizhaohua
Functions: awk head sort uniq
0
Up
Down
top 10 of access log

top 10 of access log

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