Commands using awk (1,418)
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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
0svn status | grep "^M" | while read entry; do file=`echo $entry | awk '{print $2}'`; echo $file; svn revert $file; done -
cut -f1,2 - IP range 16 cut -f1,2,3 - IP range 24 cut -f1,2,3,4 - IP range 24 Show Sample Output
0netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n -
0amixer -c 0 set Master toggle | sed -n "$ p" | awk '{print $4}' | sed "s/[^0-9]//g"
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0amixer -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
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0git submodule status | awk '{print $2}' | xargs -P5 -n1 git submodule update --init
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Create a bash function for easy reference webPassword() { echo $1 $2 | md5sum | awk '{print substr($0,0,10)}' } alias webpwd=webPassword Use like this. webpwd www.commandlinefu.com MyPetNameHere Show Sample Output
0echo http://www.TheWebSiteName.com privatekeyword | md5sum | awk '{print substr($0,0,10)}' -
0ifconfig | grep "inet" | grep "broadcast" | awk '{print $2}'
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more variety
0ifconfig | grep "inet" | tail -1 | awk '{print $2}' -
0ip a s eth0 | awk '/inet / {print $2} | sed -e 's/\/..//g'
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0ip a s eth0 | awk -F"[/ ]+" '/inet / {print $3}'
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Get a list of all the unique hostnames from the apache configuration files. Handy to see what sites are running on a server. When i saw the command i had some ideas to make it shorter. Here is my version.
0egrep 'ServerAlias|ServerName' /etc/apache2/sites-enabled/*.conf | awk '{printf "%s\t%s\n",$2,$3}' | sed 's/www.//' | sort | uniq -
You can execute this inside an editor to get all the fields inside your buffer and do the magic, really usefull when your tables contain a giant list of fields. Show Sample Output
0echo "DESCRIBE dbname.table_name" | mysql -u dbusername | awk '{print $1}' | grep -v Field -
Depending on your Apache access log configuration you may have to change the sum+=$11 to previous or next awk token. Beware, usually in access log last token is time of response in microseconds, penultimate token is size of response in bytes. You may use this command line to calculate sum and average of responses sizes. You can also refine the egrep regexp to match specific HTTP requests. Show Sample Output
0egrep '.*(("STATUS)|("HEAD)).*' http_access.2012.07.18.log | awk '{sum+=$11; ++n} END {print "Tot="sum"("n")";print "Avg="sum/n}' -
If there are spaces won't work.
0export PATH= $(echo $PATH | tr ':' '\n' | awk '!/matching string/' | paste -sd:) -
0lsof -p `pidof pidgin` | awk '{ print $9 }'|egrep `hostname` | grep -o ">[^:]\+:" | tr -d ":>" | while read line; do host $line; done;
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Allows to change 'shell' compatible files execution bit even if their name is not *.sh
0find . -type f -exec file '{}' + | grep shell | awk -F':' '{print $1}' | xargs chmod u+x -
Okay, commands like this are a bit of a personal peeve. awk(1) operates on a /pattern/ {action} paradigm and yet I see people leave out the /pattern/ portion of an awk command all the time, opting to use grep or sed instead. You'll save yourself some typing and time if you include the /pattern/ with your {action}.
0ps wwwwuax|awk '/command/ { printf("kill -9 %s\n",$2) }'|/bin/sh -
0wget --no-use-server-timestamps $(curl $(curl http://wallbase.cc/random/23/eqeq/1920x1080/0/100/20 | grep 'wallpaper/' | awk -F'"' '{print $2}' | head -n1) | grep -A4 bigwall | grep img | awk -F'"' '{print $2}'); feh --bg-center $(ls -1t | head -n1)
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0screen -x $(screen -ls | awk 'NR == 2 { print $1 }')
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grep -e "[sh]d[a-l]$" /proc/partitions | awk '{print $4}' # for disks only grep -e "[sh]d[a-l][0-9]\+" /proc/partitions | awk '{print $4}' # for partitions only Show Sample Output
0grep -e "[sh]d[a-l][0-9]\?" /proc/partitions | awk '{print $4}' -
Linux only Show Sample Output
0awk '{print $1}' /proc/net/dev|grep :|sed "s/:.*//g" -
The command will make it easy to determine free IP ranges in a crowded sub-net. Show Sample Output
0SUBNET="192.168.41" ; diff -y <(nmap -sP -n ${SUBNET}.0/24 | grep ${SUBNET}. | awk '{print $5}' | sort -t"." -k4 -n) <(for i in $(seq 1 254); do echo ${SUBNET}.$i; done) -
I came up with this because I don't have a problem remembering the big major changes I made deep inside my tree for a specific feature or bugfix but always manage to forget the trivial stuff I tweaked or touched along the way that needs to get pushed as well. Show Sample Output
0git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'|sh -
Uses the --porcelain option, which is garanteed to be stable among git versions and configurations - also, is way easier to parse. Show Sample Output
0git status --porcelain | awk '{print $2}' | xargs git add -
Get the current cpu % usage on your system. Show Sample Output
0top -n2 -d 0.5 | grep ^Cpu | sed 's/[[:alpha:]%]*//g' | awk 'NR == 2 {printf("%.2f\n",100-$5)}' - ‹ First < 33 34 35 36 37 > Last ›
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