Commands using awk | commandlinefu.com

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Terminal - Commands using awk - 1,055 results

newhostname=$(hostname | awk -F. '{print $1 "." $2}'); ipaddress=$(nslookup `hostname` | grep -i address | awk -F" " '{print $2}' | awk -F. '{print $3 "." $4}' | grep -v 64.142);PS1="[`id -un`.$newhostname.$ipaddress]"' (${PWD}): '; export PS1

2009-02-16 20:11:53

User: simardd

Functions: awk export grep hostname nslookup

-4

Up
Down

change your PS1 to look better :)

changes the PS1 to something better than default.

[username.hostname.last-2-digits-of-ip] (current directory)

find path/to/folder/ -type f -print0 | xargs -0 -n 1 md5sum | awk '{print $1}' | sort | md5sum | awk '{print $1}'

2009-02-16 19:39:37

User: mcover

Functions: awk find md5sum sort xargs

-2

Up
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Calculates fake folder checksum based on folder's files' md5sums

For quick validation of folder's file-contents (structure not taken into account) - I use it mostly to check if two folders' contents are the same.

df / | awk '{print $1}' | grep dev | xargs tune2fs -l | grep create

2009-02-16 18:45:03

User: Kaio

Functions: awk df grep tune2fs xargs

Up
Down

Check the age of the filesystem

Very useful set of commands to know when your file system was created.

ip route | grep default | awk '{print $3}'

2009-02-16 16:29:03

User: ruedu

Functions: awk grep route

Up
Down

Get your default route

This gets you your default route programatically, useful for scripts

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

netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n | tail

2009-02-16 15:48:27

User: TuxOtaku

Functions: awk cut netstat sort uniq

Up
Down

Netstat Connection Check

This command does a tally of concurrent active connections from single IPs and prints out those IPs that have the most active concurrent connections. VERY useful in determining the source of a DoS or DDoS attack.

LC_ALL=C svn info | grep Revision | awk '{print $2}'

2009-02-16 14:53:52

User: chickenkiller

Functions: awk grep info

-2

Up
Down

Outputs current folder svn revision

This is the simple revision number on stdout, that can be fed to any useful/fun script of yours. Setting LC_ALL is useful if you use another locale, in which case "Revision" is translated and cannot be found. I use this with doxygen to insert my source files revisions into the doc. An example in Doxyfile:

FILE_VERSION_FILTER = "function svn_filter { LC_ALL=C svn info $1 | grep Revision | awk '{print $2}'; }; svn_filter"

Share your ideas about what to do with the revision number !

find / -type f -size +25M -exec ls -lh {} \; | awk '{ print $5 " " $6$7 ": " $9 }'

2009-02-16 12:27:48

User: darkon1365

Functions: awk find ls

Up
Down

Finds all files from / on down over specified size.

Very useful for finding all files over a specified size, such as out of control log files chewing up all available disk space. Fedora Core x specific version.

ps aux | awk '{sum+=$6} END {print sum/1024}'

2009-02-16 12:10:00

User: darkon1365

Functions: awk ps

Up
Down

Pulls total current memory usage, including SWAP being used, by all active processes.

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

for i in $(svn st | grep "?" | awk '{print $2}'); do svn add $i; done;

2009-02-16 11:16:41

User: raz

Functions: awk grep

Up
Down

Add all files not under subversion control

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netstat -anl | grep :80 | awk '{print $5}' | cut -d ":" -f 1 | uniq -c | sort -n | grep -c IPHERE

2009-02-16 08:54:08

User: nullrouter

Functions: awk cut grep netstat sort uniq

Up
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Who has the most Apache connections.

This will tell you who has the most Apache connections by IP (replace IPHERE with the actual IP you wish to check). Or if you wish, remove | grep -c IPHERE for the full list.

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

netstat -pant 2> /dev/null | grep SYN_ | awk '{print $5;}' | cut -d: -f1 | sort | uniq -c | sort -n | tail -20

2009-02-16 08:49:38

User: unixmonkey982

Functions: awk cut grep netstat sort tail uniq

Up
Down

List top 20 IP from which TCP connection is in SYN_RECV state

List top 20 IP from which TCP connection is in SYN_RECV state.

Useful on web servers to detect a syn flood attack.

Replace SYN_ with ESTA to find established connections

xprop | awk '/PID/ {print $3}' | xargs ps h -o pid,cmd

2009-02-16 07:55:19

User: jackhab

Functions: awk ps xargs

Tags: Process Management windows process GUI

Up
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Click on a GUI window and show its process ID and command used to run the process

This command is useful when you want to know what process is responsible for a certain GUI application and what command you need to issue to launch it in terminal.

sudo dpkg --purge `dpkg -l | awk '/^r/{print $2}'`

2009-02-16 02:18:02

User: elleryq

Functions: awk sudo

Up
Down

purge all packages marked with 'rc'

After you install/remove lots of packages, there are many packages marked with 'rc'. This script help you to purge these packages, it will save some spaces from your disk.

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bdf | awk '(NF<5){f=$1; next} (NF>5){f=$1} {print f, $2, $3, $NF}'

2009-02-15 22:54:52

User: dcarlisle

Functions: awk

-2

Up
Down

Takes a multi line df or bdf and turns it into just one line

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

netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | sed s/::ffff:// | cut -d: -f1 | sort | uniq -c | sort -n

2009-02-15 09:16:16

User: dt

Functions: awk cut netstat sed sort uniq

Up
Down

count IPv4 connections per IP

usefull in case of abuser/DoS attacks.

ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf("%0o ",k);print}'

2009-02-13 19:20:54

User: iArno

Functions: awk ls

Up
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Octal ls

Do ls with permissions written in octal form.

ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'

2009-02-13 14:02:35

User: sylvain

Functions: awk ifconfig

Up
Down

Getting the ip address of eth0

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

svn st | grep /main/java | awk '{print $2}' | xargs echo | xargs svn ci -m "my comment here"

2009-02-11 16:31:05

User: Antoine

Functions: awk echo grep xargs

-2

Up
Down

Commit all the changes in your java code

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head

2009-02-11 13:12:29

User: unixmonkey611

Functions: awk sort

Up
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List of commands you use most often

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

FAIL2BAN=`ps ax | grep fail2ban | grep -v grep | awk {'print $1'}` && if [ -n "$FAIL2BAN" ]; then printf "\n[INFO] Fail2Ban is running and the PID is %s\n\n" $FAIL2BAN; else printf "\n [INFO] Fail2Ban is not running\n\n"; fi

2009-02-11 04:36:49

User: fmdlc

Functions: awk grep printf

-6

Up
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Check if Fail2Ban is Running

Check if Fail2Ban is running on the system and alert it with a message in the terminal

find ./* -name 'CVS' | awk '{print "dos2unix " $1 "/*"}' | awk '{system($0)}'

2009-02-11 01:01:56

User: kongxx

Functions: awk find

Up
Down

Recover cvs ": no such repository" error

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

svn st | grep "^\?" | awk "{print \$2}" | xargs rm -rf

2009-02-10 21:15:23

User: l33tminion

Functions: awk grep rm xargs

Up
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delete unversioned files in a checkout from svn

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accurev stat -M -fl | awk '{print "\"" $0 "\""}' | xargs accurev pop

2009-02-09 19:22:39

User: adamm9

Functions: awk stat xargs

Tags: SCM

-3

Up
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Execute AccuRev pop command to retrieve missing files from a workspace.

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awk '{ FS = OFS = "#" } { if ($9==1234) print }' filename*.log > bigfile.log

2009-02-09 18:26:25

User: trunet

Functions: awk

Up
Down

Show a line when a "column" matchs

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ls -la | awk '$3 == "oracle" || $3 == "root" {print $9}'

2009-02-07 18:50:17

User: mnikhil

Functions: awk ls

Up
Down

list files by testing the ownership

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