Commands by oernii2

Commands by oernii2 (13)

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Find out local DISPLAY number

Not always does Xorg run on :0. For times like those, this script allows you to find out which it is.
This is sample output - yours may be different.
-2

export DISPLAY=$(tr '\000' '\n' < /proc/`pidof Xorg`/cmdline | egrep '^:[0-9]+')

oernii2 · 2012-12-18 07:26:16 7
parse html/stdin with lynx

strips html from stdin Show Sample Output
This is sample output - yours may be different.
```
some_html_generating_program | html2ascii
```
2

alias html2ascii='lynx -force_html -stdin -dump -nolist'

oernii2 · 2012-04-12 14:02:44 293
delay: a simple scheduler

the "delay" utility is an invaluable tool for me. with gnu-screen it allows you to schedule something and have it run and output to the current terminal, unlike "at". You can also use it like "sleep" with seconds and also with date: delay until 13:33 friday && echo test get it from: http://onegeek.org/~tom/software/delay/current/delay.c (author: Tom Rothamel)
This is sample output - yours may be different.
1

delay until 16 && import_db.sh

oernii2 · 2012-03-01 12:38:32 17
Parallel XZ with progress bar

You need: pxz for the actual work (http://jnovy.fedorapeople.org/pxz/). The function could be better with better multifile and stdin/out support.
This is sample output - yours may be different.
0

function xzv() { THREADS=`grep processor /proc/cpuinfo | wc -l`; for file in $*; do pv -s `stat -c%s $file` < $file | pxz -q -T $THREADS > $file.xz ; done; }

oernii2 · 2011-12-14 08:22:08 6
Print full LVM LV paths (for copy&paste)
This is sample output - yours may be different.
0

lvs | awk '{printf("/dev/%- 40s %-7s %10s %20s %6s %5s %5s %5s %5s\n", $2 "/" $1, $3, $4, $5, $6, $7, $8, $9, $10)}'

oernii2 · 2011-12-08 16:35:59 9
intercept stdout/stderr of another process
This is sample output - yours may be different.
59

strace -ff -e trace=write -e write=1,2 -p SOME_PID

oernii2 · 2010-04-20 08:55:54 14
Temporarily ignore known SSH hosts

you may create an alias also, which I did ;-) alias sshu="ssh -o UserKnownHostsFile=/dev/null "
This is sample output - yours may be different.
9

ssh -o UserKnownHostsFile=/dev/null root@192.168.1.1

oernii2 · 2010-04-08 14:55:58 5

every 1sec sends DD the USR1 signal which causes DD to print its progress. Show Sample Output

while :;do killall -USR1 dd;sleep 1;done

oernii2 · 2010-04-07 09:23:31 10

dd with progress bar

piping through 'pv' shows a simple progress/speed bar for dd. This is a replacement for my otherwise favorite 'while :;do killall -USR1 dd;sleep 1;done' Show Sample Output
This is sample output - yours may be different.
```
66.5MB 0:00:23 [2.78MB/s] [        <=>   ]
```
9

dd if=/dev/nst0 |pv|dd of=restored_file.tar

oernii2 · 2010-04-07 09:21:18 23

Show a simple table with disk IO for the specified host. you monitor a LOT of different thing. Mostly used for MRTG and similar, but this is nice for a quick look, which disk is busy. "public" is your SNMP community ensure that snmpd is running on the host which you intend to monitor Show Sample Output

watch -n1 snmptable -v2c -c public localhost diskIOTable

oernii2 · 2010-03-19 11:31:52 5

More precise BASH debugging
This is sample output - yours may be different.
18

env PS4=' ${BASH_SOURCE}:${LINENO}(${FUNCNAME[0]}) ' sh -x /etc/profile

oernii2 · 2009-10-07 14:44:59 16
Recreate all initrd files

Do this with caution.
This is sample output - yours may be different.
-1

for kern in $(grep "initrd " /boot/grub/grub.conf|grep -v ^#|cut -f 2- -d-|sed -e 's/\.img//g'); do mkinitrd -v -f /boot/initrd-$kern.img $kern; done

oernii2 · 2009-08-19 09:53:29 503
stop windows update

Windows only: stops windows update and the nagging restart window. You need your admin password for this one.
This is sample output - yours may be different.
4

runas /user:administrator net stop wuauserv

oernii2 · 2009-06-30 09:29:03 18

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.

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Are the two lines anagrams?

This works by reading in two lines of input, turning each into a list of one-character matches that are sorted and compared.

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

diff two svn repos ignoring spaces,tabs and svnfiles

creeate file named after actual date

Create a file with actual date as filename

a function to create a box of '=' characters around a given string.

First argument: string to put a box around. Second argument: character to use for box (default is '=') Same as command #4948, but shorter, and without the utility function.

list files recursively by size

Change the From: address on the fly for email sent from the command-line

It's very common to have cron jobs that send emails as their output, but the From: address is whatever account the cron job is running under, which is often not the address you want replies to go to. Here's a way to change the From: address right on the command line. What's happening here is that the "--" separates the options to the mail client from options for the sendmail backend. So the -f and -F get passed through to sendmail and interpreted there. This works on even on a system where postfix is the active mailer - looks like postfix supports the same options. I think it's possible to customize the From: address using mutt as a command line mailer also, but most servers don't have mutt preinstalled.

List docker volumes by container

Ergo browsing 'pacman' queries (Arch)

Alternative1 (grep support): pacman -Ss python | paste - - | grep --color=always -e '/python' | less -R Alternative2 (eye-candy, no grep): pacman --color=always -Ss "python" | paste - - | less -R in ~/.bashrc: pkg-grep() { pacman -Ss "$1" | paste - - | grep --color=always -e "${2:-$1}" | less -R ; } pkg-search() { pacman --color=always -Ss "python" | paste - - | less -R; }

Join lines

Even shorter. Stolen from comment posted by eightmillion.

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