Commands tagged cut (72)
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Show all columns except 5th. This might help you save some typing if you are trying to exclude some columns from the output.
24cut -f5 --complement -
Here is a command line to run on your server if you think your server is under attack. It prints our a list of open connections to your server and sorts them by amount. BSD Version:
netstat -na |awk '{print $5}' |cut -d "." -f1,2,3,4 |sort |uniq -c |sort -nrShow Sample Output14netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n -
Here's an awk alternative, for those lacking the version of cut with the --complement argument.
11awk '{ $5=""; print }' file -
grep -o puts each occurrence in a separate line
9$ grep -or string path/ | wc -l -
The cut should match the relevant timestamp part of the logfile, the uniq will count the number of occurrences during this time interval. Show Sample Output
5grep <something> logfile | cut -c2-18 | uniq -c -
I've been using it in a script to build from scratch proxy servers. Show Sample Output
5ifconfig eth0 | grep "inet " | cut -d ':' -f2 | awk '{print $1}' -
Use this BASH trick to create a variable containing the TAB character and pass it as the argument to sort, join, cut and other commands which don't understand the \t notation.
sort -t $'\t' ...join -t $'\t' ...cut -d $'\t' ...Show Sample Output5sort -t $'\t' -k 2 input.txt -
Goes through all files in the directory specified, uses `stat` to print out last modification time, then sorts numerically in reverse, then uses cut to remove the modified epoch timestamp and finally head to only output the last 10 modified files. Note that on a Mac `stat` won't work like this, you'll need to use either:
find . -type f -print0 | xargs -0 stat -f '%m%t%Sm %12z %N' | sort -nr | cut -f2- | heador alternatively do a `brew install coreutils` and then replace `stat` with `gstat` in the original command. Show Sample Output5find . -type f -print0 | xargs -0 stat -c'%Y :%y %12s %n' | sort -nr | cut -d: -f2- | head -
A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Exponent Calculator is the second of three functions needed to calculate a bitcoin PRIVATE key. Roughly, checksum is the first 8 hex digits of sha256(sha256(0x80+sha256(passphrase))) Note that this is a bash function, which means you have to type its name to invoke it Show Sample Output
5function brainwallet_checksum () { (o='openssl sha256 -binary'; p='printf';($p %b "\x80";$p %s "$1"|$o)|$o|sha256sum|cut -b1-8); } -
Change the cut range for hits per 10 sec, minute and so on... Grep can be used to filter on url or source IP. Show Sample Output
4tail -f access_log | cut -c2-21 | uniq -c -
poor man's xml parser :)
4xml2 < file.xml | grep ^/path/to/element | cut -f2- -d= -
"cut" the user names from /etc/passwd and then running a loop over them. Show Sample Output
3for u in `cut -f1 -d: /etc/passwd`; do echo -n $u:; groups $u; done | sort -
Based on the MrMerry one, just add some visuals to differentiate files and directories
3du -a --max-depth=1 | sort -n | cut -d/ -f2 | sed '$d' | while read i; do if [ -f $i ]; then du -h "$i"; else echo "$(du -h --max-depth=0 "$i")/"; fi; done -
displays current time in "binary clock" format (loosely) inspired by: http://www.thinkgeek.com/homeoffice/lights/59e0/ "Decoding": 8421 .... - 1st hour digit: 0 *..* - 2nd hour digit: 9 (8+1) .*.. - 1st minutes digit: 4 *..* - 2nd minutes digit: 9 (8+1) Prompt-command version: PROMPT_COMMAND='echo "10 i 2 o $(date +"%H%M"|cut -b 1,2,3,4 --output-delimiter=" ") f"|dc|tac|xargs printf "%04d\n"|tr "01" ".*"' Show Sample Output
3echo "10 i 2 o $(date +"%H%M"|cut -b 1,2,3,4 --output-delimiter=' ') f"|dc|tac|xargs printf "%04d\n"|tr "01" ".*" -
This set of commands was very convenient for me when I was preparing some xml files for typesetting a book. I wanted to check what styles I had to prepare but coudn't remember all tags that I used. This one saved me from error-prone browsing of all my files. It should be also useful if one tries to process xml files with xsl, when using own xml application.
2grep -h -o '<[^/!?][^ >]*' * | sort -u | cut -c2- -
Based on the MrMerry one, just add some visuals and sort directory and files
2find . -maxdepth 1 -type d|xargs du -a --max-depth=0|sort -rn|cut -d/ -f2|sed '1d'|while read i;do echo "$(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 -
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 -
list top committers (and number of their commits) of svn repository. in this example it counts revisions of current directory. Show Sample Output
2svn log -q | grep '^r[0-9]' | cut -f2 -d "|" | sort | uniq -c | sort -nr -
as unixmonkey7109 pointed out, first awk parse replaces three steps.
1awk '/q=/{print $11}' /var/log/httpd/access_log.4 | awk -F 'q=' '{print $2}' | sed 's/+/ /g;s/%22/"/g;s/q=//' | cut -d "&" -f 1 -
The ^python$ is a package name patten. You can change whatever you want. Show Sample Output
1dpkg -l | cut -d' ' -f 3 | grep ^python$ -
1netstat -rn | grep UG | tr -s " " | cut -d" " -f2
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1echo -n "String to MD5" | md5sum | cut -b-32
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Grabs the Apache config file (yielded from httpd) and returns the path specified as DocumentRoot. Show Sample Output
1httpd -V | grep -i SERVER_CONFIG_FILE | cut -f2 -d'"' | xargs grep -i '^DocumentRoot' | cut -f2 -d'"' -
You can also cut charactes starting from X to N.
1cut -c 1-N - 1 2 3 >
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