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Terminal - All commands - 11,592 results
lsof -i tcp:80
2009-04-16 14:51:53
User: ar_levi
32

Sometimes you need to use a port that is already opened by some program , and you don't know who to "kill" for it to release - so, now you do !

find /path/to/my/files/ -type f -name "*txt*" | xargs du -k | awk 'BEGIN{x=0}{x=x+$1}END{print x}'
2009-04-16 14:17:04
Functions: awk du find xargs
2

Use the find command to match certain files and summarise their total size in KBytes.

locate searchstring | xargs grep foo
2009-04-16 12:51:24
User: zimon
Functions: grep locate xargs
Tags: grep locate
-3

Greps located files for an expression.

Example greps all LaTeX files for 'foo':

locate *.tex | xargs grep foo

To avoid searching thousands of files with grep it could be usefull to test first how much files are returned by locate:

locate -c *.tex
sed '/^/R addfile' targetfile > savefile
2009-04-16 05:11:07
User: tobiasboon
Functions: sed
1

After every line in targetfile (empty lines included) insert in a line from addfile. "Save" results to savefile. Addfile should be longer than targetfile since this doesn't loop back to the top of addfile.

/^/R addfile -- says for every line that matches "has a start of line" output a line from the file addfile.

> savefile (optional) -- redirect output to savefile file.

awk '/sshd/ && /Failed/ {gsub(/invalid user/,""); printf "%-12s %-16s %s-%s-%s\n", $9, $11, $1, $2, $3}' /var/log/auth.log
2009-04-16 00:56:23
User: frailotis
Functions: awk printf
11

A variation of a script I found on this site and then slimmed down to just use awk. It displays all users who have attempted to login to the box and failed using SSH. Pipe it to the sort command to see which usernames have the most failed logins.

x0vnc4server -display :0 -PasswordFile ~/.vnc/passwd
egrep -ci ^[aoeuidhtns-]+$ /usr/share/dict/words
2009-04-15 20:31:46
User: atoponce
Functions: egrep
5

Quick and dirty command that counts how many words can be typed just using the home row on the Dvorak Simplified Keyboard layout from a dictionary file, in this case /usr/share/dict/words.

According to the regular expression supplied, each word must contain all the keys on the Dvorak home row, and no other characters. For comparison, I've shown how many words are installed in my dictionary, how many can be typed with just the Dvorak home row and how many can be typed with just the QWERTY home row in the sample output. Nearly 10 times the amount.

If you want to see the words, remove the -c switch, and each word will be printed out.

cat <filename> | perl -e '$/ = ""; $_ = <>; s/<!--.*?-->//gs; print;'
2009-04-15 20:29:11
User: unixx
Functions: cat perl
0

xml with verbose commenting can be difficult to read. remove comments from xml.

echo -e "aa\nbb\ncc\ndd\n123" | sed -e :a -e "/$/N; s/\n/;/; ta"
wget -q -O - "$@" <url>
echo "12345,12346" |sed -e's/ //'|tr "," "\n"| while read line; do echo -n $line" "; svn log -vr $line https://url/to/svn/repository/|grep "/"|head -1|cut -d"/" -f2; done
date -r foo
ufraw-batch --out-type=jpeg --out-path=./jpg ./*.NEF
2009-04-15 09:03:59
User: sudopeople
Tags: photo photos
6

converts RAW files from a Nikon DSLR to jpg for easy viewing etc.

requires ufraw package

sudo cat /dev/vcs1 | fold -w 80
2009-04-15 08:49:48
User: animoid
Functions: cat fold sudo
16

This will view the console and assumes the screen is 80 characters wide.

Use /dev/vcs2 for the next virtual console.. etc.

/sbin/ifconfig -a | awk '/(cast)/ { print $2 }' | cut -d':' -f2 | head -1
echo 'wget url' | at 12:00
convert images*.* <my_pdf>.pdf
watch "dmesg |tail -15"
2009-04-14 03:13:17
User: Buzzcp
Functions: watch
11

Other logs can be monitored similarly, e.g.

watch "tail -15 /var/log/daemon.log"
find | sed -e "s/^.*\///" | awk ' BEGIN { FS=""} { print NF " " $0 } ' | sort -nrf | head -10
watch -n 1 "netstat -tpanl | grep ESTABLISHED"
ls -la
cd ~/.mozilla/firefox/ && sqlite3 `cat profiles.ini | grep Path | awk -F= '{print $2}'`/formhistory.sqlite "select * from moz_formhistory" && cd - > /dev/null
2009-04-13 20:23:37
User: klipz
Functions: awk cd grep
19

When you fill a formular with Firefox, you see things you entered in previous formulars with same field names. This command list everything Firefox has registered. Using a "delete from", you can remove anoying Google queries, for example ;-)

svn status | grep "^\?" | awk '{print $2}' | xargs svn add
yum erase `yum list installed | grep 'php'`
2009-04-13 12:58:16
Functions: grep
-4

This is useful for remove all packages that are part of a common suite.

i=10;for o in *.mp3; do i=$(printf "%02d" $i); mv $o $i$o; ((i = $i + 2)); done
2009-04-13 12:33:52
User: bazzawill
Functions: mv printf
-1

This command adds the numbers 10, 12, 14 to a bunch of mp3's in the current working directory. You can then run the command replacing the inital i=10 with i=11 to add 11,13,15 in another directory then mv the files together and the first files interweave with the second group of files. I used this to weave a backlog of a podcast with other podcast so I didn't get sick of one while I was catching up. I started at 10 because printf blows up with 0 padded numbers 08 and 09 which kind of makes the printf command redundant as it was used to pad numbers 1 - 9 so they would come first and not get sorted incorrectly