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awk, bash, curl, find, grep, Linux, sed

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Functions

Terminal - Commands using head - 255 results

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

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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

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

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Get IP address from domain

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

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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}'

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

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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.

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

2013-07-22 08:36:03

User: vidya99343

Functions: find head sort

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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$

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

2013-07-22 08:34:28

User: vidya99343

Functions: find head sort

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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

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20char long alpahnumeric "password"

20characters long alpahnumeric "password"

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

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statistic of the frequnce of your command from your history。

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

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

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list the top 15 folders by decreasing size in MB

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,

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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

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top 10 of access log

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cat -n install.log | head -88 | tac | head -n $(( 88 - 50 )) | tac

2013-05-02 08:39:54

User: cuizhaohua

Functions: cat head tac

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cut log from line 50 to line 88

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cat -n install | head -n 150 | tac | head -n 50 | tac

2013-05-02 08:11:04

User: cuizhaohua

Functions: cat head install tac

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cut log with row number,like from row number to another row number.

cut log from row 100 to row 150.

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awk '/Dec\/2012/ {print $1,$8}' logfile | grep -ivE '(.gif|.jpg|.png|favicon|.css|.js|robots.txt|wp-l|wp-term)' | sort | uniq -c | sort -rn | head -n 20

2013-04-30 06:51:47

User: vaaclav

Functions: awk grep head sort uniq

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find top 20 results in apache statistics for a specific month

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rpm -qa --queryformat '%{size} %{name}-%{version}-%{release}\n' | sort -k 1,1 -rn | nl | head -16

2013-03-19 21:10:54

User: mpb

Functions: head nl rpm sort

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Display 16 largest installed RPMs in size order, largest first

Interesting to see which packages are larger than the kernel package.

Useful to understand which RPMs might be candidates to remove if drive space is restricted.

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

2013-03-19 12:16:24

User: opexxx

Functions: find head ls sort

Tags: sort find head,

-3

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Find top 5 big files

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tr -dc 'A-Za-z0-9!@#$%^&*' < /dev/urandom | fold -w 12 | head -n 1

2013-03-15 13:20:32

User: opexxx

Functions: fold head tr

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Generate password

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xxd -p /dev/urandom |fold -60|head -30|sed 's/$..$/\1 /g'

2013-02-19 22:18:52

User: psifertex

Functions: fold head sed

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generate 30 x 30 matrix

Replaces hexdump with the more succint xxd, and the sed was unnecessarily complex.

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hexdump -v -e '"%u"' </dev/urandom|fold -60|head -n 30|sed 's/$.\{2\}$/\1 /g'

2013-02-16 12:56:24

User: knoppix5

Functions: fold head hexdump sed

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generate 30 x 30 matrix

od /dev/urandom -w60 -An|sed 's/ ..../ /g'|head -n 30

(this one lacks digits 8 and 9)

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finger `whoami` | awk -F: '{ print $3 }' | head -n1 | sed 's/^ //'

2013-01-03 20:19:03

User: andrew_duffy

Functions: awk finger head sed

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Get user's full name in Mac OS X

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

48 function gbl() { git for-each-ref --sort=-committerdate --format='%(committerdate) %(authorname) %(refname)' refs/remotes/origin/|grep -e ".$@"|head -n 10; }

2012-12-13 23:35:06

User: soheil

Functions: grep head

Tags: git remote quick branch

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List Remote Git Branches By Author

Place in .bash_profile

du . | sort -nr | awk '{split("KB MB GB TB", arr); idx=1; while ( $1 > 1024 ) { $1/=1024; idx++} printf "%10.2f",$1; print " " arr[idx] "\t" $2}' | head -25

2012-12-03 02:59:13

User: agas

Functions: awk du head printf sort

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List the size (in human readable form) of all sub folders from the current location

Lists the size in human readable form and lists the top 25 biggest directories/files

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seq 10| shuf | head -1

2012-11-21 03:57:02

User: sandeepvreddy

Functions: head seq

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Generate random number with shuf

Above command will generate a random number between 1 to 10.

cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 18 | head -1 | python -c "import sys,crypt; stdin=sys.stdin.readline().rstrip('\n'); print stdin;print crypt.crypt(stdin)"

2012-11-09 00:40:22

User: cnyg

Functions: cat fold head python tr

Tags: bash password python sha512

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Generate a 18 character password, print the password and sha512 salted hash

Generate a 18 character password from character set a-zA-Z0-9 from /dev/urandom, pipe the output to Python which prints the password on standard out and in crypt sha512 form.

for k in `git branch -r|awk '{print $1}'`;do echo -e `git show --pretty=format:"%Cgreen%ci_%C(blue)%c r_%Cred%cn_%Creset" $k|head -n 1`$k;done|sort -r|awk -F"_" '{printf("%s %17s %-22s %s\n",$1,$2,$3,$4)}'

2012-10-29 12:38:24

User: varon

Functions: awk echo head sort

Tags: bash git perl grep branches

-1

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Show git branches by date - useful for showing active branches

simple table

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