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Commands using grep from sorted by
Terminal - Commands using grep - 1,625 results
find ./ -type f -print0 | xargs -0 file -iNf - | grep video | cut -d: -f1
2009-11-19 06:05:36
User: jnash
Functions: cut file find grep xargs
0

Uses mime-type of files rather than relying on file extensions to find files of a certain type.

This can obviously be extended to finding files of any other type as well.. like plain text files, audio, etc..

In reference to displaying the total hours of video (which was earlier posted in command line fu, but relied on the user having to supply all possible video file formats) we can now do better:

find ./ -type f -print0 | xargs -0 file -iNf - | grep video | cut -d: -f1 | xargs -d'\n' /usr/share/doc/mplayer/examples/midentify | grep ID_LENGTH | awk -F "=" '{sum += $2} END {print sum/60/60; print "hours"}'
apod(){ local x=http://antwrp.gsfc.nasa.gov/apod/;feh $x$(curl -s ${x}astropix.html|grep -Pom1 'image/\d+/.*\.\w+');}
2009-11-18 12:06:03
User: eightmillion
Functions: grep
3

Substitute feh for the image viewer of your choice. display (part of imagemagick) seems to be a popular choice.

/usr/share/mplayer/midentify.sh `find . -name "*.avi" -print` | grep ID_LENGTH | awk -F "=" '{sum += $2} END {print sum/60/60; print "hours"}'
2009-11-17 03:33:20
User: equant
Functions: awk grep
4

midentify.sh is part of mplayer, but you might have to locate it on your box.

sensors | grep "Core 1" | [[ `sed -e 's/^.*+\([0-9]\{2,3\}\).*(.*/\1/'` -gt 50 ]] && notify-send "Core 1 temperature exceeds 50 degrees"
2009-11-12 21:51:21
Functions: grep sensors
1

You'll be notified if your core 1 temperature exceeds 50 degrees, you can change the monitored device by editing the "Core 1" or change the critical temperature by editing the "-gt 50" part.

Note: you must have lm-sensors installed and configured in order to get this command working.

curl http://www.spam.la/?f=sender | grep secs| awk '{print; exit}' | osd_cat -i 40 -d 30 -l 2
2009-11-12 21:33:06
User: m33600
Functions: awk grep
-1

I have a custmer's Geovision DVR installed on a closed proxi (only logme-in reaches it).

I have to check for reliability but logmein hangs and is too slow a process

I made the Geovision software send e-mail every minute to the www.spam.la site.

All this script does is to retrieve the e-mail header from spam.la ( no login!), filtering sender, stopping at the first occurrence of the word "secs" ( the age of the last e-mail ).

The result is the age of the sender's last e-mail, tiny published on top of my screen once a minute.

I can refresh www.spam.la via web browser, but have other things to do.

I use it inside Kalarm ( kde task schedule ) set to 1 minute repeat.

It can be done without kalarm, using Watch outside the script.

Try it out now using my account = geo1 ( change sender by geo1 in this script)

Needs curl , osd-bin

find -name '*.avi' | while read i ; do echo $(mplayer -identify -frames 0 -vo null -nosound "$i" 2>&1 | grep ID_LENGTH | cut -d= -f2)" ""$i" ;done | sort -k1 -r -n | sed 's/^\([^\ ]*\)\ \(.*\)$/\2:\1/g'
2009-11-09 17:14:59
User: ZungBang
Functions: cut echo find grep read sed sort
2

handles file names with spaces and colons, fixes sort (numeric!), uses mplayer, same output format as other alternatives

for i in *.avi; do echo -n "$i:";mediainfo $i|head | grep PlayTime | cut -d: -f2 ; done | sort -t: -k2 -r
2009-11-09 12:42:20
User: yooreck
Functions: cut echo grep head sort
0

Similar but using mediainfo instead of totem-something

for i in *.avi; do echo -n "$i:";totem-gstreamer-video-indexer $i | grep DURATION | cut -d "=" -f 2 ; done | sort -t: -k2 -r
2009-11-09 02:59:53
User: iadbungler
Functions: cut echo grep sort
1

Sort .avi movies by time length, print the longest first, and so on...

mpg123 `curl -s http://blip.fm/all | sed -e 's#"#\n#g' | grep mp3$ | xargs`
grep -c '^From ' mbox_file
GeoipLookUp(){ curl -A "Mozilla/5.0" -s "http://www.geody.com/geoip.php?ip=$1" | grep "^IP.*$1" | html2text; }
2009-11-06 00:32:27
User: sputnick
Functions: grep
Tags: sed curl
3

That makes a function you can put in your ~/.bashrc to run it when you need in any term with an IP as argument

ip link show eth0 | grep "link/ether" | awk '{print $2}'
2009-11-05 17:06:15
User: maxmanders
Functions: awk grep link
Tags: mac
0

...or for a particular interface...

grep "model name" /proc/cpuinfo
2009-11-05 05:23:30
User: getkaizer
Functions: grep
Tags: grep cpuinfo
3

Extracts the model name of the CPU and displays it on screen.

lynx --dump http://ip.boa.nu|sed -e 's/^[[:space:]]*//' -e 's/*[[:space:]]$//'|grep -v ^$
2009-11-04 22:23:45
User: xeor
Functions: grep sed
-5

For those of us that still uses lynx :)

ip link | grep 'link/ether' | awk '{print $2}'
2009-11-04 19:41:26
User: markdrago
Functions: awk grep link
Tags: mac
1

I much prefer using /sbin/ip over /sbin/ifconfig for most everything. I find the interface and output to be much more consistent and it has many abilities that ifconfig, route, etc. do not. To get the mac address for only one interface, add 'show dev [interface]' to the 'ip link' part of the command: ip link show dev eth0 | grep 'link/ether' | awk '{print $2}' . Also, both this command and the ifconfig one do not require root access to run, so the sudo is not necessary.

sudo ifconfig -a | grep eth | grep HW | cut -d' ' -f11
ps -ec -o command,rss | grep Stainless | awk -F ' ' '{ x = x + $2 } END { print x/(1024) " MB."}'
2009-11-04 19:01:22
Functions: awk grep ps
0

Adds up the total memory used by all Stainless processes: 1 Stainless, 1 StainlessManager and 1 StainlessClient per tab open.

ifconfig eth1 | grep inet\ addr | awk '{print $2}' | cut -d: -f2 | sed s/^/eth1:\ /g
2009-11-03 19:26:40
User: TuxOtaku
Functions: awk cut grep ifconfig sed
2

Sometimes, you don't really care about all the other information that ifconfig spits at you (however useful it may otherwise be). You just want an IP. This strips out all the crap and gives you exactly what you want.

for x in `find /vmfs/volumes/ -name *vmx -exec grep -H linux.iso {} \; |cut -d : -f 1`; do echo $x; grep -i sync $x; done;
2009-10-30 16:19:16
User: uid0
Functions: cut echo grep sync
0

besure to adjust your find to use to correct location of your VMX files.

for URL in `wget -O - http://api.flickr.com/services/feeds/photos_public.gne?tags=bitch,bw 2>/dev/null | grep -E -o "http[^ ]+?jpg" | grep -v "_m" | uniq | grep -v 'buddy' `; do FILE=`echo $URL | grep -E -o "[0-9a-z_]+\.jpg"`; curl $URL > $FILE; done;
find . -name '*.java' | xargs -L 1 cpp -fpreprocessed | grep . | wc -l
2009-10-29 09:58:43
User: rbossy
Functions: cpp find grep wc xargs
2

I took java to make the find command simpler and to state that it works for any language supported by cpp.

cpp is the C/C++ preprocessor (interprets macros, removes comments, inserts includes, resolves trigraphs). The -fpreprocessor option tells cpp to assume the input has already been preprocessed so it will only replace comment lines with blank lines.

The -L 1 option tells xargs to launch one process for each line, indeed cpp can only process one file at the time...

TIMEUNIT=$( cat a | grep -n "timescale" | awk -F ":" '{ print $1 } ' )
curl -s checkip.dyndns.org | grep -Eo '[0-9\.]+'
w3m miip.cl | grep ip
2009-10-26 01:40:37
User: Cont3mpo
Functions: grep
-2

See external ip with w3m, simple and fast.

On a web site from Chile (spanish).

grep test somefile | grep -v -e error -e critical -e warning
2009-10-24 15:58:11
User: pipping
Functions: grep test
2

You can use -e to pass multiple patterns.