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Commands using awk

Commands using awk from sorted by
Terminal - Commands using awk - 984 results
git submodule status | awk '{print $2}' | xargs -P5 -n1 git submodule update --init
2012-06-27 19:26:56
User: lox
Functions: awk xargs
0
Up
Down
Execute git submodule update in parallel with xargs
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amixer -c 0 set Master toggle | tail -1 | awk '{print $4}' | sed "s/[^0-9]//g" ; amixer -c 0 set Speaker toggle >/dev/null; amixer -c 0 set Front toggle >/dev/null
2012-06-26 21:18:07
User: dtsip
Functions: amixer awk sed set tail
0
Up
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Unmuting master channel, printing only percent value, while suppressing other outputs
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amixer -c 0 set Master toggle | sed -n "$ p" | awk '{print $4}' | sed "s/[^0-9]//g"
2012-06-26 21:16:42
User: dtsip
Functions: amixer awk sed set
0
Up
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Mute Master sound channel, printing only the percent volume
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netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n
2012-06-26 08:29:37
User: krishnan
Functions: awk cut grep netstat sort uniq
Tags: sort awk IP grep netstat connection range user
0
Up
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Number of connections per IP with range 24

cut -f1,2 - IP range 16

cut -f1,2,3 - IP range 24

cut -f1,2,3,4 - IP range 24

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svn status | grep "^M" | while read entry; do file=`echo $entry | awk '{print $2}'`; echo $file; svn revert $file; done
2012-06-17 16:01:06
User: wsams
Functions: awk echo grep read
Tags: svn awk grep svn revert
0
Up
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Revert all modified files in an SVN repo

This command allows you to revert every modified file one-by-one in a while loop, but also after "echo $file;" you can do any sort of processing you might want to add before the revert happens.

Show sample output | Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
awk '{ a[$2]++ } END { for (b in a) { print b } }' file
2012-06-05 07:58:51
User: giorger
Functions: awk
1
Up
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Display unique values of a column

Find the unique values of a column utilizing awk.

Credits goes to here (posted by "era"): http://www.unix.com/shell-programming-scripting/77138-awk-print-distinct-col-values.html

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls -ltr |grep 'May 12'|awk '{print $9;}'|xargs rm -v
2012-06-04 12:31:41
User: harpo
Functions: awk grep ls rm xargs
-2
Up
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grep files by date and delete

executed on SLES 11.2

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cp $(find /media/ -type f -name "*.wav" -printf "%T@ %h/%f\n" | sort | tail -1 | awk '{ print $2 }') .
2012-06-01 12:45:43
User: hamoid
Functions: awk cp find sort tail
Tags: newest file most recent file
0
Up
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Copy the most recent wav file from /media/ to the current folder

Watch out if you have several USB drives plugged in: it scans the whole /media/ folder !!! You can replace /media/ by the path of a specific USB drive (something like /media/F77A-530B/)

I use a sound recorder and I want to plug the recorder and grab the most recent sound.

That's what this command does.

Use mv instead of cp to move instead of copy.

Change *.wav to the required file type.

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tune2fs -l $(df -P / | awk 'NR==2 {print $1}') | sed -n 's/^.*created: *//p'
2012-05-31 12:12:35
User: forcefsck
Functions: awk df sed tune2fs
Tags: ext3 ext4 timestamp installation
0
Up
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Find out the installation time of a linux system (when installed in a ext2/3/4 file system)

Find out the earliest installation time of a linux system by getting the / filesystem creation time. This example is only valid the os is installed on an ext2/3/4 filesystem.

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awk 'BEGIN{ff=0;chr=0;sf=0}{if($0~/Firefox/){ff=ff+1}if($0~/Safari/){sf=sf+1}if($0~/Chrome/){chr=chr+1} }END{total=(chr+ff+sf); print "Total: "total "\nSafari: " (sf/total*100) "\nFirefox: "(ff/total*100) "\nChrome: "(chr/total*100) }' /logs/access_log
2012-05-29 23:27:55
User: bertatum
Functions: awk
0
Up
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Lil stats on instant usage of navigator

I think this have worked, could be enhanced.

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awk '{if ($NF ~ "^[a-zA-Z].*[0-9]$" && $NF !~ "c[0-9]+d[0-9]+$" && $NF !~ "^loop.*") print "/dev/"$NF}' /proc/partitions
2012-05-25 17:01:15
User: SEJeff
Functions: awk
Tags: Linux disk crimsonfu
0
Up
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Print out all partitions on a system
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awk '{if ($NF ~ "^[a-zA-Z].*[a-zA-Z]$" && $NF !~ "name" || $NF ~ "c[0-9]+d[0-9]+$") print "/dev/"$NF}' /proc/partitions
2012-05-25 16:59:33
User: SEJeff
Functions: awk
Tags: Linux disk crimsonfu
0
Up
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Print a list of all disks or volumes attached to a system
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ps aux | awk '{if ($8 ~ "D") print $0}'
2012-05-25 16:53:57
User: SEJeff
Functions: awk ps
Tags: Linux nfs crimsonfu
0
Up
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Find processes stuck in dreaded "D" state aka IO Wait

Lots of fun to run on nfs clients when the server or network connection is having issues

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kill -9 -$(ps x -o "%c %r" | awk '/svscan/{print $2}')
2012-05-25 16:39:02
User: SEJeff
Functions: awk kill ps
Tags: Linux kill commandlinefu crimsonfu
0
Up
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Kill the process *group* containing a process named svscan (djb's daemontools)

Daemontools[1] won't always properly reap it's children. Sometimes when you need to kill the main svscan process, you want to also clean up all of it's children. The way to do that is to send a signal to the entire process group. It is a bit tricky

[1] http://cr.yp.to/daemontools.html

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lsof +c 15 | awk '{print $1}' | sort | uniq -c | sort -rn | head
2012-05-25 16:31:46
User: SEJeff
Functions: awk sort uniq
Tags: Linux lsof
1
Up
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Top 15 processes with the largest number of open files

See the summary.

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ls -l| sort +4n|tail -1| awk '{print $NF}'
2012-05-25 06:35:39
User: pritishunix
Functions: awk ls sort tail
0
Up
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Get the file name having biggest size in directory.
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fdisk -l /dev/sda | grep -E sda[0-9]+ | sed s/*// | awk '{printf ("%s %f ",$1,$2/512); if($2%512){ print "BAD" }else {print "Good"} }' | column -t
2012-05-18 08:34:36
User: The_IceMan_Blog
Functions: awk column fdisk grep sed
Tags: Linux partition ssd alignment hdd
0
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Check if you partition are aligned

To get most of you HDD/SSD driver you need to make sure you partition are aligned, if not the speed penalty can be up to 50% slower!

this simple one liner will check to see if each partition start sector is divided by 512

you need to change sda with your driver

if you find the one of your partitions is not aligned use gparted to move the start sector of the partition to be divided of 512

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awk -F'\t' '{print $0 >>$5.tsv}'
2012-05-16 18:18:16
User: pykler
Functions: awk
Tags: awk split tsv
0
Up
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Split tsv file by fifth column ... or any column

Will split the std input lines into files grouped by the 5th column content.

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ip li | grep ether | awk '{print $2}'
2012-05-14 23:22:18
User: minigeek
Functions: awk grep
1
Up
Down
Find Mac address
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lsof -i tcp:22 | grep 192.168.10.10 | awk "{print $2}" |xargs kill
2012-05-10 10:45:22
User: gda2004
Functions: awk grep xargs
0
Up
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This will kill all ssh connections from a given host it does give some errors but it does work

you could redirect output to /dev/NULL

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cal 04 2012 | awk '{ $7 && X=$7 } END { print X }'
2012-05-06 23:43:21
User: flatcap
Functions: awk cal
Tags: Date manipulation awk date cal
2
Up
Down
Get the date for the last Saturday of a given month

If your locale has Monday as the first day of the week, like mine in the UK, change the two $7 into $6

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free -m | awk '/cache:/ { printf("%d%\n",$3/($3+$4)*100)}'
2012-05-06 17:46:24
User: cengztr
Functions: awk free
1
Up
Down
Get free RAM in %
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echo `disklabel mfid1s4 | sed -n '$p' | awk '{print $2}'` / 1024 / 1024 | bc -l
2012-05-04 12:48:58
User: RageJello
Functions: awk bc echo sed
Tags: csh sed awk bc -l FreeBSD disklabel bsdlabel
0
Up
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Converts the output of disklabel from bytes to Gigabytes on FreeBSD

This was done in csh.

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cal 04 2012 | awk 'NF <= 7 { print $7 }' | grep -v "^$" | tail -1
2012-05-03 16:57:45
User: javidjamae
Functions: awk cal grep tail
Tags: Date manipulation awk tail grep date dates cal
-2
Up
Down
Get the date for the last Saturday of a given month

This is a little trickier than finding the last Sunday, because you know the last Sunday is in the first position of the last line. The trick is to use the NF less than or equal to 7 so it picks up all the lines then grep out any empty lines.

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grep "$1" urls.txt | awk '{print "curl --write-out "$0"=http-%{http_code}\"\n\" --silent --output /dev/null "$0'} | sh >> responses.txt
2012-04-30 01:02:50
User: CookyBear
Functions: awk grep sh
0
Up
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Reads a list of urls, fetches each one and logs the url and http status code
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