Commands using grep (1,935)
-
0google() { Q="$@"; GOOG_URL='https://www.google.com/search?q='; AGENT="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36" elinks -dump "${GOOG_URL}${Q//\ /+}" | grep "\*" | head -1 }
-
0grep URL ~/annex/.git/annex/webapp.html | tr -d '">' | awk -F= '{print $4 "=" $5}'
-
For a given filesystem return the LUN ID. Command assumes 1:1 relationship between fs:lv:hdisk:lun which may not be the case in all environments. Show Sample Output
0getlunid() { lv=$(df -P $1|grep "^/dev/"|awk '{print $1}'|awk -F/ '{print $3}'); hd=$(lslv -l $lv|tail -1|awk '{print $1}');id=$(odmget -q "name like $hd AND attribute=unique_id" CuAt|grep "value ="|awk -F= '{print $2}'|tr -d '"');echo $id;} -
Convert all .weblock files (Apple url) to a url on the stdout.
0strings * |grep -v "Apple" |grep http |uniq |sed "s/<[^>]\+>//g" -
0ps -efa | grep httpd | grep -v grep | awk '{ print $2 }' |xargs
-
Many tasks need mac id check. above command exactly do the same Show Sample Output
0ifconfig |grep HWaddr |cut -d ' ' -f 1,11 |grep eth0 |cut -d ' ' -f 2|xargs | awk -F':' '{ print $1$2$3$4$5$6 }' -
Found it online and could be very useful
0for i in $(cat vulns.txt); do echo $i; rpm -qa ?changelog | grep -i $i; done -
010,30,50 * * * * ping -q -c1 -w3 www.test.com | grep '1 received' - || mail -ne -s'Host 192.168.0.14 not reachable' test@gmail.com
-
0ps aux | grep 'httpd' | awk '{print $6/1024 " MB";}'
-
0ps aux | grep 'httpd' | awk '{print $6/1024;}' | awk '{avg += ($1 - avg) / NR;} END {print avg " MB";}'
-
0ps aux | grep 'mysql' | awk '{print $6/1024 " MB";}'
-
Better to use this command instead of installing whole new application to check the battery stats. Show Sample Output
0ioreg -l | grep Capacity -
There are times when a X Window server hangs. When this happens, you can log in on a terminal and kill the Xorg process (i.e. the X Server). This one line command will do the trick.
0sudo kill -9 $( ps -e | grep Xorg | awk '{ print $1 }' ) -
0watch -n0.5 'ps -e -o pid,vsz,comm= | sort -n -k 2 | grep apache | wc -l'
-
Show If Someone Is Connected To The Android Device On And Get Their IP Address
0netstat -lptu | grep -E "22.*ESTABLISHED" | cut -s -d ':' -f2 | awk '{print $2}' -
Mac OSX friendly version of google function Show Sample Output
0function google { Q="$@";GOOG_URL='https://www.google.com/search?tbs=li:1&q=';AGENT="Mozilla/4.0";stream=$(curl -A "$AGENT" -skLm 10 "${GOOG_URL}${Q//\ /+}");echo "$stream" | grep -o "href=\"/url[^\&]*&" | sed 's/href=".url.q=\([^\&]*\).*/\1/';} -
Using the $PIPESTATUS array you can get the results of a command in a sequence of commands piped together. The command above returns the result of grep -o "bob", which is exit result of 1 since no match was made. Show Sample Output
0echo "Dave" | grep -o "bob" | sed 's/D/f/'; echo ${PIPESTATUS[1]}; -
Filter entries in OpenSuse /var/log/messages like: timestamp servername kernel: [83242.108090] btrfs: checksum error at logical 1592344576 on dev /dev/sda5, sector 5223584, root 5, inode 2652, offset 282624, length 4096, links 1 (path: log/warn) Show Sample Output
0grep "btrfs: checksum error at logical" /var/log/messages | egrep -o "[^ ]+$" | tr -d ')' | sort | uniq -
btrfs checksum errors console report. Show Sample Output
0echo "btrfs checksum error(s) on: " && grep "btrfs: checksum error at logical" /var/log/messages | sed -e 's/^.*\( dev .*\)\(, sector.*\)\(path\: .*\))/\t\1, \3/' | sort | uniq -
To get the list of tickets in a comma-separated list, pipe the above into:
sort | uniq | perl -pe 's/\n/, /' | sed 's/, $//'Show Sample Output0git log master...feature-a | grep -o -E '\b([A-Z]+)-[0-9]+\b' | sort | uniq -
Just want to show the "+" usage in the grep command. And if using egrep, thing would be a little bit easier: grep -n "arrname\[[[:digit:]]+\]" filename Show Sample Output
0grep -n "arrname\[[[:digit:]]\+\]" filename -
0find . |xargs grep '<html\|<body\|<table' |sed '/~/d;s/:.*//' |sed 's/.*/mv & &.html/' |uniq >run.sh; sh run.sh
-
This shows the the filenames of tail output in color. Helpful if you have many log files to tail
0tail -f *.log | grep --color=always '|==>.+<==' -
Same but will only returns the invalid file (great when emailing the list to the team).
0find . -name "*.php" -exec php -l {} \; | grep found -
0postqueue -p | grep -A 1 "over quota" | grep @ | sort | uniq | tr --delete ' '
- ‹ First < 50 51 52 53 54 > Last ›
What's this?
commandlinefu.com is the place to record those command-line gems that you return to again and again. 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.
Check These Out
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 grep