Commands using gawk | commandlinefu.com

Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. 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.

If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

OpenID

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

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 gawk

Hide

News

2011-03-12 - Confoo 2011 presentation: Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands: To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner: Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed: Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.

Hide

Functions

Hide

Credits

Site by David Winterbottom (user root).

Terminal - Commands using gawk - 33 results

for x in `seq -w 1 30`; do sar -b -f /var/log/sa/sa$x | gawk '/Average/ {print $2}'; done

2009-06-17 02:46:52

User: unixmonkey4319

Functions: gawk

Tags: awk sysstat

Up
Down

Extract the daily average number of iops

You need sysstat and gawk for this to work.

hddtemp /dev/sda /dev/sdb /dev/hda /dev/hdb | gawk '{print $NF}' | perl -n -e '$_ =~ s/(\d+)/print "$1 "/eg }{ print "\n"'

2009-05-20 16:01:58

User: microft

Functions: gawk perl

Up
Down

get the list of temps for your hard-drives

get a list of temps of your hard-drives.

psql -U postgres -lAt | gawk -F\| '$1 !~ /^template/ && $1 !~ /^postgres/ && NF > 1 {print $1}'

2009-05-15 14:33:50

User: lv4tech

Functions: gawk

Up
Down

List all PostgreSQL databases. Useful when doing backups

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

screen -ls | grep pts | gawk '{ split($1, x, "."); print x[1] }' | while read i; do gnome-terminal -e screen\ -dx\ $i; done

2009-04-22 10:36:39

User: microft

Functions: gawk grep read screen

Up
Down

connect to all screen instances running

connects to all the screen instances running.

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

find . -type f -print0 | xargs -r0 stat -c %Y\ %n | sort -rn | gawk '{sub(/.\//,"",$2); print $2}' > /tmp/playlist.m3u

2009-03-04 16:41:02

User: microft

Functions: find gawk sort stat xargs

Up
Down

Generate a playlist of all the files in the directory, newer first

I use this to generate a playlist with all the podcasts I listen to.

Ordered from most recent to older.

mysql -u uname dbname -e "show tables" | grep -v Tables_in | grep -v "+" | gawk '{print "optimize table " $1 ";"}' | mysql -u uname dbname

2009-02-05 14:54:22

User: dlamotte

Functions: gawk grep uname

Up
Down

command line to optimize all table from a mysql database

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

mysql -u uname dbname -e "show tables" | grep -v Tables_in | grep -v "+" | gawk '{print "drop table " $1 ";"}' | mysql -u uname dbname

2009-02-05 14:53:09

User: dlamotte

Functions: gawk grep uname

-1

Up
Down

command line to drop all table from a databse

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sudo lsof | awk '{printf("%s %s %s\n", $1, $3, $NF)}' | grep -v "(" | sort -k 4 | gawk '$NF==prv{ct++;next} {printf("%d %s\n",ct,$0);ct=1;prv=$NF}' | uniq | sort -nr

2009-02-05 14:18:57

User: bpfx

Functions: awk gawk grep sort sudo uniq

Up
Down

To find the count of each open file on a system (that supports losf)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

< 1 2