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Terminal - All commands - 11,857 results
awk '{print NR": "$0; for(i=1;i<=NF;++i)print "\t"i": "$i}'
2009-07-23 06:25:31
User: recursiverse
Functions: awk
Tags: awk
16

Breaks down and numbers each line and it's fields. This is really useful when you are going to parse something with awk but aren't sure exactly where to start.

ssh -t remote_host screen -r
2009-07-23 06:15:04
User: recursiverse
Functions: screen ssh
Tags: ssh screen
41

Directly attach a remote screen session (saves a useless parent bash process)

tar c folder_to_encrypt | openssl enc -aes-256-cbc -e > secret.tar.enc
2009-07-23 06:03:39
User: recursiverse
Functions: c++ tar
5

command to decrypt:

openssl enc -aes-256-cbc -d < secret.tar.enc | tar x

Of course, don't forget to rm the original files ;) You may also want to look at the openssl docs for more options.

explorer $( cygpath "/path/to/file_or_exe" -w )
2009-07-22 17:00:21
User: Highwayman
-2

This executes faster than

cygstart.exe

I put this in a script and added it to my path:

cat `which explore.sh`

#!/bin/bash

if [ $# -eq 0 ]; then

explorer.exe $( cygpath `pwd` -w ) &

else

explorer.exe $( cygpath $1 -w ) &

fi;

Using the script you just type

explore.sh file_or_executable

Note: you can do this for any file that has an associated executable in the windows registry. This is quite handy if you want to open pictures or movies from xterm.

$ awk '{ split(sprintf("%1.3e", $1), b, "e"); p = substr("yzafpnum_kMGTPEZY", (b[2]/3)+9, 1); o = sprintf("%f", b[1] * (10 ^ (b[2]%3))); gsub(/\./, p, o); print substr( gensub(/_[[:digit:]]*/, "", "g", o), 1, 4); }' < test.dat
2009-07-22 16:54:14
User: mungewell
Functions: awk
Tags: awk
2

converts any number on the 'stdin' to SI notation. My version limits to 3 digits of precious (working with 10% resistors).

lynx -dump http://www.ip-adress.com/ip_tracer/?QRY=$1|sed -nr s/'^.*My IP address city: (.+)$/\1/p'
ls -drt /var/log/* | tail -n5 | xargs sudo tail -n0 -f
2009-07-22 14:44:41
User: kanaka
Functions: ls sudo tail xargs
Tags: bash tail log watch
5

This command finds the 5 (-n5) most frequently updated logs in /var/log, and then does a multifile tail follow of those log files.

Alternately, you can do this to follow a specific list of log files:

sudo tail -n0 -f /var/log/{messages,secure,cron,cups/error_log}

lomount -diskimage /path/to/your/backup.img -partition 1 /mnt/foo
4

Instead of calculating the offset and providing an offset option to mount, let lomount do the job for you by just providing the partition number you would like to loop mount.

ip addr|grep "inet "
2009-07-22 07:38:06
User: RickDeckardt
Functions: grep
-3

Shows a single line per interface (device), with its IPv4 settings.

Shorter command, better readability in output.

curl -u 'username' https://api.del.icio.us/v1/posts/all | sed 's/^.*href=//g;s/>.*$//g;s/"//g' | awk '{print $1}' | grep 'http'
2009-07-22 07:32:59
User: bubo
Functions: awk grep sed
2

a variation of avi4now's command - thanks by the way!

/sbin/ifconfig | grep inet | cut -f 2 -d ":" | cut -f 1 -d " " |egrep -v "^$"
while true ; do IFS="" read i; echo "$i"; sleep .01; done < <(tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]")
2009-07-22 03:59:07
Functions: dd echo grep read sleep tr true
Tags: color
2

Same as above but slooooow it down

/sbin/ifconfig | grep inet | cut -f 2 -d ":" | cut -f 1 -d " "
2009-07-21 21:42:04
User: random_bob
Functions: cut grep
-1

another way to output the IP address' of the system

for i in `git log --all --oneline --format=%h`; do git grep SOME_STRING $i; done
/sbin/ifconfig | awk -F'[ :]+' '/inet addr/{print $4}'
2009-07-21 14:18:17
User: inof
Functions: awk
-1

That one works on Linux. On BSD and Solaris, the ifconfig output is much easier to parse:

/sbin/ifconfig -a | awk '/inet/{print $2}'
alias restart='apache2ctl configtest && apache2ctl restart'
2009-07-21 14:13:15
Functions: alias
2

making lots of configurations to apache and restarting the server only to find it broken just plain sucks.

/sbin/ifconfig eth0 | grep "inet addr" | sed -e 's/.*inet addr:\(.*\) B.*/\1/g'
ifconfig $DEVICE | perl -lne '/inet addr:([\d.]+)/ and print $1'
2009-07-21 13:48:19
User: jdob
Functions: ifconfig perl
Tags: IP
-2

Found this useful for scripts where I needed to work with the machine's IP. If $DEVICE is not specified, this will return all IPs on the machine. If $DEVICE is set to a network adapter, it will return just that adapter's IP.

alias grip="grep -i"
2009-07-21 11:12:15
User: inof
Functions: alias
-3

This is *NOT* about the -i option in grep. I guess everybody already knows that option. This is about the basic rule of life that the simplest things are sometimes the best. ;-)

One day when I used "grep -i" for the umpteenth time, I decided to make this alias, and I've used it ever since, probably more often than plain grep. (In fact I also have aliases egrip and fgrip defined accordingly. I also have wrip="grep -wi" but I don't use this one that often.)

If you vote this down because it's too trivial and simplistic, that's no problem. I understand that. But still this is really one of my most favourite aliases.

alias sucs="sort | uniq -c | sort -n"
2009-07-21 10:55:06
User: inof
Functions: alias
0

This alias finds identical lines in a file (or pipe) and prints a sorted count of them (the name "sucs" descends from the first letters of the commands). The first example shows the number of logins of users; the one who logged in most often comes last. The second example extracts web client IP addresses from a log file, then pipes the result through the "sucs" alias to find out which clients are performing the most accesses. Or pipe the first column of ps(1) output through "sucs" to see how many processes your users are running.

/usr/sbin/apache2ctl -S
2009-07-21 10:52:49
User: lingo
0

Simply shows virtualhosts enabled, root access not needed (assuming apache2ctl is non-root executable).

/usr/sbin/apache2ctl -S 2>&1 | perl -ne 'm@.*port\s+([0-9]+)\s+\w+\s+(\S+)\s+\((.+):.*@ && do { print "$2:$1\n\t$3\n"; $root = qx{grep DocumentRoot $3}; $root =~ s/^\s+//; print "\t$root\n" };'
2009-07-21 10:51:30
User: lingo
Functions: perl
4

Lists virtualhosts currently enabled for apache2, showing the ServerName:port, conf file and DocumentRoot

find / | xargs ls -l | tr -s ' ' | cut -d ' ' -f 1,3,4,9
cvs update -C
cat `whereis mysqlbug | awk '{print $2}'` | grep 'CONFIGURE_LINE='