Commands using cut (586)
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In order to write bash-scripts, I often do the task manually to see how it works. I type ### at the start of my session. The function fetches the commands from the last occurrence of '###', excluding the function call. You could prefix this with a here-document to have a proper script-header. Delete some lines, add a few variables and a loop, and you're ready to go. This function could probably be much shorter...
3quickscript () { filename="$1"; history | cut -c 8- | sed -e '/^###/{h;d};H;$!d;x' | sed '$d' > ${filename:?No filename given} } -
Updated according to flatcap's suggestion, thanks!
3groups user1 user2|cut -d: -f2|xargs -n1|sort|uniq -d -
3wget -q -O- https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/ | grep Linux/7/pdf | cut -d \" -f 2 | awk '{print "https://access.redhat.com"$1}' | xargs wget
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3elinks -dump https://pastebin.com/archive|grep https|cut -c 7-|sed 's/com/com\/raw/g'|awk 'length($0)>32 && length($0)<35'|grep -v 'messages\|settings\|languages\|archive\|facebook\|scraping'|xargs wget
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2# cut -d ' ' -f1 /var/log/nginx/nginx-access.log | sort | uniq -c | sort -nr | head -10 | nl
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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. Show Sample Output
2netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n | tail -
Allows you to save progress without committing. To revert to an undo point, svn revert then apply the undo point with patch.
svn revert -R . && patch -p0 < .undo/2009-03-27_08:08:11rev57Similar: http://www.commandlinefu.com/commands/view/373/archive-all-files-containing-local-changes-svn Show Sample Output2function svnundopoint() { if [ -d .undo ]; then r=`svn info | grep Revision | cut -f 2 -d ' '` && t=`date +%F_%T` && f=${t}rev${r} && svn diff>.undo/$f && svn stat>.undo/stat_$f; else echo Missing .undo directory; fi } -
2netstat -ntlp | grep -w 80 | awk '{print $7}' | cut -d/ -f1
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Tuned for short command line - you can set the path to sessionstore.js more reliable instead of use asterixes etc. Usable when you are not at home and really need to get your actual opened tabs on your home computer (via SSH). I am using it from my work if I forgot to bookmark some new interesting webpage, which I have visited at home. Also other way to list tabs when your firefox has crashed (restoring of tabs doesn't work always). This script includes also tabs which has been closed short time before.
2F="$HOME/.moz*/fire*/*/session*.js" ; grep -Go 'entries:\[[^]]*' $F | cut -d[ -f2 | while read A ; do echo $A | sed s/url:/\n/g | tail -1 | cut -d\" -f2; done -
exported files will get a .r23 extension (where 23 is the revision number)
2svn log fileName|cut -d" " -f 1|grep -e "^r[0-9]\{1,\}$"|awk {'sub(/^r/,"",$1);print "svn cat fileName@"$1" > /tmp/fileName.r"$1'}|sh -
This set of commands was very convenient for me when I was preparing some xml files for typesetting a book. I wanted to check what styles I had to prepare but coudn't remember all tags that I used. This one saved me from error-prone browsing of all my files. It should be also useful if one tries to process xml files with xsl, when using own xml application.
2grep -h -o '<[^/!?][^ >]*' * | sort -u | cut -c2- -
2lsof |awk ' {if ( $0 ~ /home/) print substr($0, index($0,"/home") ) }'|cut -d / -f 1-4|sort|uniq -c|sort -bgr
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In Debian based distros, this command will list 'binutils' package details which contains 'nm' command. You can replace 'nm' to any other command.
2dpkg -S `which nm` | cut -d':' -f1 | (read PACKAGE; echo "[${PACKAGE}]"; dpkg -s "${PACKAGE}"; dpkg -L "${PACKAGE}") | less -
If you use newsgroups then you'll have come across split files before. Joining together a whole batch of them can be a pain so this will do the whole folder in one. Show Sample Output
2for file in *.001; do NAME=`echo $file | cut -d. -f1,2`; cat "$NAME."[0-9][0-9][0-9] > "$NAME"; done -
When you've got a list of numbers each on its row, the ECHO command puts them on a simple line, separated by space. You can then substitute the spaces with an operator. Finally, pipe it to the BC program. Show Sample Output
2echo $( du -sm /var/log/* | cut -f 1 ) | sed 's/ /+/g' -
Debian: Mark all dependent packages as manually installed. So they are not automatically removed if you remove some meta package - like gnome-desktop-environment for example.
2sudo aptitude unmarkauto $(apt-cache depends some-deb-meta-package-name | grep Depends | cut -d: -f2) -
2cut -f N- file.dat
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Based on the MrMerry one, just add some visuals and sort directory and files
2find . -maxdepth 1 -type d|xargs du -a --max-depth=0|sort -rn|cut -d/ -f2|sed '1d'|while read i;do echo "$(du -h --max-depth=0 "$i")/";done;find . -maxdepth 1 -type f|xargs du -a|sort -rn|cut -d/ -f2|sed '$d'|while read i;do du -h "$i";done -
2cut -f 2- -d " "
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2find ~/Music -daystart -mtime -60 -name *mp3 -printf "%T@\t%p\n" | sort -f -r | head -n 30 | cut -f 2
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miss a class at UTOSC2010? need a refresher? use this to curl down all the presentations from the UTOSC website. (http://2010.utosc.com) NOTE/WARNING this will dump them in the current directory and there are around 37 and some are big - tested on OSX10.6.1 Show Sample Output
2b="http://2010.utosc.com"; for p in $( curl -s $b/presentation/schedule/ | grep /presentation/[0-9]*/ | cut -d"\"" -f2 ); do f=$(curl -s $b$p | grep "/static/slides/" | cut -d"\"" -f4); if [ -n "$f" ]; then echo $b$f; curl -O $b$f; fi done -
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. Show Sample Output
2ifconfig eth1 | grep inet\ addr | awk '{print $2}' | cut -d: -f2 | sed s/^/eth1:\ /g -
handles file names with spaces and colons, fixes sort (numeric!), uses mplayer, same output format as other alternatives
2find -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/^\([^\ ]*\)\ \(.*\)$/\2:\1/g' -
Run this as root, it will be helpful to quickly get information about the loaded kernel modules. Show Sample Output
2lsmod | cut -d' ' -f1 | xargs modinfo | egrep '^file|^desc|^dep' | sed -e'/^dep/s/$/\n/g' -
no fancy grep stuff here.
2du | sort -nr | cut -f2- | xargs du -hs - ‹ First < 3 4 5 6 7 > Last ›
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