Post your handy self made command line utilities

steve___ · 2011-09-06 14:10:56

@doorknob60: Here are some changes:

#!/bin/bash
for i in *.flv; do
		name=${i%.flv}
		ffmpeg -i "$i" -vcodec copy -acodec copy "${name}-pre.mkv"
		mkvmerge -o "flv-backup/${name}.mkv" --aspect-ratio "1:4/3" "${name}-pre.mkv"
		rm "${name}-pre.mkv"
done

You could consider using absolute paths so your script can be run from any directory.

doorknob60 · 2011-09-07 00:37:47

Ok, I think I got a better, more generic version Now it lets you preset the desired aspect ratio, the format of the original files (so it will work with mp4s and most other formats too), and the folder you want to work in. Open to more suggestions if anyone has any.

#!/bin/bash
newaspect="4/3"
origformat="flv"
origfolder="${HOME}/Desktop/pm2/orig"
newfolder="${HOME}/Desktop/pm2"
cd "${origfolder}"
for i in *.${origformat}; do
                name=${i%.${origformat}}
                ffmpeg -i "${origfolder}/${i}" -vcodec copy -acodec copy "${newfolder}/${name}-tmp.mkv"
                mkvmerge -o "${newfolder}/${name}.mkv" --aspect-ratio "1:${newaspect}" "${newfolder}/${name}-tmp.mkv"
                rm "${newfolder}/${name}-tmp.mkv"
done

Last edited by doorknob60 (2011-09-07 00:38:19)

jasonwryan · 2011-09-07 07:46:34

#!/bin/bash
# wrapper for Tarsnap

box="archer"
dir="/home /etc"

# base commands
arc="-c -f $box-$(date +%d%m%y) $dir"                # archive
tst="-c -f $box-$(date +%d%m%y) --dry-run -v $dir"   # dry run
del="-d -f $box-"                                    # delete archive
ext="-x -f $box-"                                    # extract archive
                      
cat <<EOF
Tarsnap options:
  a: archive  |   Create and upload a new snapshot
  d: delete   |   Delete a snapshot
  e: extract  |   Extract an archive
  l: list     |   List all current snapshots
  s: summary  |   Print a summary
  t: test     |   Dry-run a new snapshot
                  Default: summary

EOF

read -p "Select your option: " input

# get delete specifics
if [[ "$input" = d* || "$input" = e* ]]; then
    while true; do
        read -p "Which archive? " archive

        # check for an archive number 
        if [[ "$archive" =~ ^[0-9]+$ ]]; then
            
            [[ "$input" = d* ]] && op="${del}${archive}" || op="${ext}${archive}"
            break
        
        else
            printf "%s\n\n" "Numbers, please..."
        fi
    done
else

    # check remaining options
    case "$input" in 
        a*) op="${arc}"           ;;
        t*) op="${tst}"           ;; 
        l*) op="--list-archives"  ;; 
        s*) op="--print-stats"    ;; 
         *) op="--print-stats"    ;;  
    esac
fi

# print dry run details to a file
if [[ "$input" = t* ]]; then
    printf "%s\n" "Starting dry run: results saved to tarsnapout.txt"
    sudo tarsnap $op 2>tarsnapout.txt    

else
    # run the options    
    sudo tarsnap $op
fi

I suspect the logic is slightly tortured, but it seems to work...

karabaja4 · 2011-09-16 22:38:44

This script detects if the user has been idle for 5 minutes, and if he has, shuts down the monitor COMPLETELY, through ddccontrol (amazing tool btw).
You're probably say, why not just use monitor built-in standby? Well, my monitor is broken, so when it goes to standby colors and sharpness get all screwed up So this is a workaround.

#!/usr/bin/python2

import ctypes
import os
import time

class XScreenSaverInfo( ctypes.Structure):
  """ typedef struct { ... } XScreenSaverInfo; """
  _fields_ = [('window',      ctypes.c_ulong), # screen saver window
              ('state',       ctypes.c_int),   # off,on,disabled
              ('kind',        ctypes.c_int),   # blanked,internal,external
              ('since',       ctypes.c_ulong), # milliseconds
              ('idle',        ctypes.c_ulong), # milliseconds
              ('event_mask',  ctypes.c_ulong)] # events



def queryIdle(dpy, root, xss):
	
	xss_info = xss.XScreenSaverAllocInfo()
	xss.XScreenSaverQueryInfo(dpy, root, xss_info)
	
	return xss_info.contents.idle

def main():

	xlib = ctypes.cdll.LoadLibrary('libX11.so')
	dpy = xlib.XOpenDisplay(os.environ['DISPLAY'])
	root = xlib.XDefaultRootWindow(dpy)
	
	xss = ctypes.cdll.LoadLibrary('libXss.so')
	xss.XScreenSaverAllocInfo.restype = ctypes.POINTER(XScreenSaverInfo)
	
	monitorIsOff = False

	while True:
	
		idleTime = queryIdle(dpy, root, xss)
		
		# 5 minutes
		if ((idleTime > 300000) and not (monitorIsOff)):
			os.system("sudo ddccontrol -p -r 0xe1 -w 0")
			print "Monitor is off."
			monitorIsOff = True
		
		if ((idleTime < 10000) and (monitorIsOff)):
			print "Idle broken. Assuming monitor on."
			monitorIsOff = False
		
		print "Idle time in milliseconds: %d" % idleTime
		time.sleep(5)

main()

Last edited by karabaja4 (2011-09-16 22:42:57)

decay_of_mind · 2011-10-01 13:46:40

This small script sets random wallpaper. I use it with hotkey.

#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import random

WPDIR="/home/zengeist/Images/Wallpapers/"

item = random.choice(os.listdir(WPDIR))
cmd = "pcmanfm -w "+WPDIR+item
os.system(cmd)
exit()

karol · 2011-10-01 13:53:13

decay_of_mind wrote:

This small script sets random wallpaper. I use it with hotkey.

#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import random

WPDIR="/home/zengeist/Images/Wallpapers/"

item = random.choice(os.listdir(WPDIR))
cmd = "pcmanfm -w "+WPDIR+item
os.system(cmd)
exit()

find /home/karol/pics -type f | shuf -n1

picks a random file from the specified dir.

decay_of_mind · 2011-10-01 13:56:42

karol wrote:

decay_of_mind wrote:
This small script sets random wallpaper. I use it with hotkey.
#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import random

WPDIR="/home/zengeist/Images/Wallpapers/"

item = random.choice(os.listdir(WPDIR))
cmd = "pcmanfm -w "+WPDIR+item
os.system(cmd)
exit()
find /home/karol/pics -type f | shuf -n1
picks a random file from the specified dir.

Thx. Now it becomes much simpler and faster.

Gen2ly · 2011-10-06 17:56:19

lolilolicon wrote:

I find that ompload ruby script in AUR doesn't work for me anymore. So I made up one in bash.

#!/bin/bash

###:: ompload bash version

# TODO: Add 'slow down, cowboy' sleeps

URL='http://omploader.org/'
TMP='/tmp/ompload.tmp'
Q='-#' ; U=0 ; F='OmPlOrD'

while getopts 'quf:h' opt ; do
    case $opt in
        q) Q='-s' ;;
        u) Q='-s' ; U=1 ;;
        f) F="$OPTARG"  ;;
        h) echo '-q for quiet; -u for url only; -f for stdin.name' ; exit 0 ;;
    esac
done
shift $((OPTIND-1))

if [ ${#@} -eq 0 ] ; then
    curl $Q -F "file1=@-;filename=${F}" ${URL}upload -o "${TMP}"
    URI=$(grep '<!-- View file' "${TMP}" | grep -m1 -o ${URL}'[[:alnum:]]*')
    echo "${URI}"
else
    for IMG ; do
        curl $Q -F "file1=@${IMG}" ${URL}upload -o "${TMP}"
        URI=$(grep '<!-- View file' "${TMP}" | grep -m1 -o ${URL}'[[:alnum:]]*')
        [ $U == 0 ] && echo "${IMG}" '-->' "${URI}" || echo "${URI}"
    done
fi

Can somebody tell me why the good old ompload ruby script doesn't work anymore? I think it's 'coz the ruby version bump... How do I fix it?

Edit: So I updated the script as Daenyth suggested, allowing stdin as input.

Rats, doesn't work anymore . Any ideas on how to fix?

lolilolicon · 2011-10-07 00:53:45

Gen2ly wrote:

Rats, doesn't work anymore . Any ideas on how to fix?

Got it fixed for you... http://ompldr.org/vYW96Nw

Gen2ly · 2011-10-07 18:30:19

lolilolicon wrote:

Gen2ly wrote:
Rats, doesn't work anymore . Any ideas on how to fix?
Got it fixed for you... http://ompldr.org/vYW96Nw

Danke. Thanks lolilolicon.

Lars Stokholm · 2011-10-08 10:42:41

Something similar has probably been done before, but last night I made a script to manage a todo list with the help of dmenu:

#!/bin/bash
#
# todo: Manages a todo list with the help of dmenu
#

TODOFILE=${HOME}/sandbox/todo
DMENUOPTS="-fn 9x15 -nb #000000 -nf #999999 -sb #333333 -sf #FFFFFF"
MAXLINES=5

touch "${TODOFILE}"
[[ -f "${TODOFILE}" ]] || exit 1

LINECOUNT=$(wc -l "${TODOFILE}" | cut -f1 -d' ')
[[ ${LINECOUNT} -gt ${MAXLINES} ]] && LINECOUNT=${MAXLINES}

INPUT="$(cat "${TODOFILE}" | dmenu -l ${LINECOUNT} ${DMENUOPTS})"

[[ "${INPUT}" ]] || exit 0

if grep -Fx "${INPUT}" "${TODOFILE}" >/dev/null; then
  INPUT=$(echo "${INPUT}" | sed 's/\(\*\|\.\|\/\|\[\|\\\|\]\)/\\&/g')
  sed -i "/^${INPUT}$/d" "${TODOFILE}"
else
  echo "${INPUT}" >>"${TODOFILE}"
fi

exit 0

A YouTube video of the script in use.

Edit: Corrected some bugs, uploaded a better video demonstration.

Last edited by Lars Stokholm (2011-11-26 10:45:16)

dodo3773 · 2011-10-14 08:52:33

Recently I have been trying out (and liking) openbox more and more. But, the ipblock gui makes it crash for some reason. I read a couple of places it may be java related and I did not see any fix so I wrote this simple bash command line program (needs to be run as root or sudo):

#!/bin/bash

trap 'ipblock -d' 0
ipblock -s 
tail -Fq /tmp/ipblock.log 2>/dev/null 

exit

It loads your ipblock lists and starts blocking. Then there is an autoscroll for the blocked ips (tail -Fq). When you control+c to leave it turns ipblock back off.

vcottineau · 2011-10-16 22:32:52

A simple bash mail notifier for Mutt (Maildir).
Could be also used with conky.

#!/bin/bash
##############
#Mutt notifier
##############

cd ~/Mail/Mutt
orange_new=`du -a -h Orange/ | grep new | grep .arch | wc -l`
if [ $orange_new -gt 1 ]
then
  echo "Orange: "$orange_new" new messages"
else
  echo "Orange: "$orange_new" new message"
fi
exit 0

EDIT:
Without the `du` command

orange_new=`find Orange/ -name "*.arch" | grep new | wc -l`

Last edited by vcottineau (2011-10-17 09:39:49)

lolilolicon · 2011-10-17 01:34:08

vcottineau wrote:

A simple bash mail notifier for Mutt (Maildir).
Could be also used with conky.

#!/bin/bash
##############
#Mutt notifier
##############

cd ~/Mail/Mutt
orange_new=`du -a -h Orange/ | grep new | grep .arch | wc -l`
if [ $orange_new -gt 1 ]
then
  echo "Orange: "$orange_new" new messages"
else
  echo "Orange: "$orange_new" new message"
fi
exit 0

For God's sake, at least use `find' and don't abuse `du'... Right tool for the right job, man.

falconindy · 2011-10-17 01:47:47

or just glob it since you don't care about anything but the presence of files. This has FAQ 4 written all over it.

#!/bin/bash

shopt -s nullglob

maildir=$HOME/var/mail/gmail

msgs=("$maildir"/*/new/*)

if (( ${#msgs[*]} )); then
  printf '%s new messages\n' ${#msgs[*]}
fi

engelus · 2011-10-21 14:28:17

hello people here's mine, a simple script to install packages from an external list with pacman (the list must be created with the command pacman -Q > ~/list for expamble)

#!/bin/bash
#pacinba=pacman install batch
#es un script que toma desde un archivo que le indicamos como parámetro
#la lista de paquetes ahí contenidos y los instala de forma automática
#para que el script funcione de forma correcta el archivo a leer debe ser
#creado con el comando pacman -Q > archivo (el nombre puede ser cualquiera)
#v1.0 by engelus (@_engelus) bajo licencia GPL v2 o superior

#comprobamos que se hallan pasado los parámetros necesarios
if [ $# -lt 1 ]; then
        echo "Se usa de la siguiente forma: pacinba.sh archivo_a_leer"
        echo "ej: pacinba.sh ~/.lista"
        exit 1
fi

dim=0 #contendra la cantidad de paquetes a instalar
#leemos el archivo linea a linea
while read line
do
	#quitamos el nro de versión ya que el comando pacman -Q	los almacena en la forma paquete X.X.X-X
	paquete="${line% [^ ]*}"
	#definimos un array para luego instalar todo con pacman -S
	paquetes[dim]=$paquete
	((++dim))
done < $1
i=0
sudo pacman -Sy
while ((i <= dim -1))
do
	#echo ${paquetes[$i]}
	sudo pacman -S ${paquetes[$i]} --noconfirm
	((++i))
done
exit

Last edited by engelus (2011-10-21 14:28:40)

karol · 2011-10-21 14:30:57

@engelus
Why do you need a script to do it? pacman can

pacman -S - <filelist

This list should be created with the '--quiet' switch so that you get only package names w/o versions:

pacman -Qq > filelist

(this doesn't take into account foreign packages - see wiki: https://wiki.archlinux.org/index.php/Pa … d_packages )

Last edited by karol (2011-10-21 14:34:54)

engelus · 2011-10-21 14:45:47

karol wrote:

@engelus
Why do you need a script to do it? pacman can
pacman -S - <filelist
This list should be created with the '--quiet' switch so that you get only package names w/o versions:
pacman -Qq > filelist
(this doesn't take into account foreign packages - see wiki: https://wiki.archlinux.org/index.php/Pa … d_packages )

it's to make same installations in diferents pcs for example or to make a whole reinstalation of the entire system.

I swear I read the wiki looking for that particular command and I could not find it. That was the reason to make the script. Now i am making some alias for those commands you told me

steve___ · 2011-10-21 14:46:50

Wouldn't this be best,

pacman -Qqe > filelist

for packages installed explicitly?

karol · 2011-10-21 14:49:28

steve___ wrote:

Wouldn't this be best,
pacman -Qqe > filelist
for packages installed explicitly?

What about AUR packages installed as a dep for another AUR package?

@engelus
Some changes have been made recently (yesterday) to that wiki page https://wiki.archlinux.org/index.php?ti … did=166129 so that's why you might have missed it.

steve___ · 2011-10-21 14:56:36

@karol - aurget has a '--deps' option or in aurgetrc one can set 'resolve_dependencies=true'

Last edited by steve___ (2011-10-21 14:57:09)

karol · 2011-10-21 15:00:27

steve___ wrote:

@karol - aurget has a '--deps' option or in aurgetrc one can set 'resolve_dependencies=true'

Of course, if we're not talking about pure pacman then it might be OK, but it depends on the AUR helper.

engelus · 2011-10-21 15:06:02

I have a script that I could not solve. Is to extract a file and create the folder if it does not exist due a bug in xarchiver, when you try to extract to a non existing forlder it returns an error.The script is basesd in the function posted in the Bash article in the Wiki. The problem is when the file has is some blank spaces in the name, does not work, is there any way to go through the string with the name of the file and add the "\" to make it work.

The script is:

#script para extraer los archivos comprimidos creando el directorio si 
#este no existe hasta que se solucione el bug de xarchiver (http://sourceforge.net/tracker/?func=detail&aid=3399118&group_id=140153&atid=745600)
#este scritp esta pensado para usarse como acción acción personalizada de thunar
#por lo que el primer parámtro corresponde al path del archivo seleccionado $1 (%f en thunar)
#el segundo parámtro corresponde al nombre del archivo seleccionado $2 (%n en thunar)
#fuentes consultas wiki de ArchLinux
#v1.0 by engelus (@_engelus)

#!/bin/bash

#comprobamos que se hallan pasado los parámetros necesarios
if [ $# -lt 2 ]; then
	echo "Se usa de la siguiente forma: extraer.sh path_del_archivo_a_extrar nombre_archivo_a_extraer"
	echo "formatos soportados 7z,Z,bz2,gz,rar,xz,zip,tar"
	echo "ej: extraer.sh ~ archivo.zip"
	exit 1
fi

NombreSolo="${2%.[^.]*}" #almacenamos el nombre solamente para usarlo luego

#si no existe el directorio donde vamos a extraer lo creamos (es el objetivo de este srcipt :p )
if [ !'test -d '$1'/'$NombreSolo'' ]; then
	mkdir -p ''$1'/'$NombreSolo''
fi

c='' #va a almacenar el comando de extracción

#chequeamos la extensicón del archivo y almacenamos en c el comando a usar para descomprimir
case $2 in
        *.7z)  c='7z x';;
        *.Z)   c='uncompress';;
        *.bz2) c='bunzip2';;
        *.gz)  c='gunzip';;
        *.rar) c="unrar x";;
        *.xz)  c='unxz';;
        *.zip) c="unzip -d";;
        *)     echo "$0: extensión de archivo no reconocida: '$2'" >&2
esac

#ejecutamos el comando para la extracción del archivo
command $c "$1/$2"

exit

Last edited by engelus (2011-10-21 15:07:12)

falconindy · 2011-10-21 15:58:31

Your quoting (and syntax) is problematic, which is what leads to the issues with spaces in filenames.

if [ !'test -d '$1'/'$NombreSolo'' ]; then
	mkdir -p ''$1'/'$NombreSolo''
fi

the square braces are not part of if's syntax. if expects commands, and [ is a command. Additionally, I'm not sure why you're quoting everything except the parts that actually matter.

if [[ -d $1/$NombreSolo ]]; then
        mkdir -p "$1/$NombreSolo"
fi

Other things to point out:
1) Your shebang is useless if it isn't on the first line. What you have after the initial comment block is another header. That's it.
2) exit at the end of a script is redundant. It'll exit without that and even pass along the right return value (the exit value of the last run command).
3) commands shouldn't be stored in variables. Use an array and quote it properly on expansion: "${c[@]}"

http://mywiki.wooledge.org/BashGuide

engelus · 2011-10-23 20:29:28

Thanks for the answer falconindy the quoting is in that way beacuse i took it from an example, i adapted to fit my script.

If not tell me what the shebang would not have noticed, if you look at my other script is in the right place: p

perhaps, but I read that the "right" to terminate a script was always putting an exit at the end

with respect to expansions do not quite understand yet, but I'm following this tutorial on bash scripting

Arch Linux

#1551 2011-09-06 14:10:56

Re: Post your handy self made command line utilities

#1552 2011-09-07 00:37:47

Re: Post your handy self made command line utilities

#1553 2011-09-07 07:46:34

Re: Post your handy self made command line utilities

#1554 2011-09-16 22:38:44

Re: Post your handy self made command line utilities

#1555 2011-10-01 13:46:40

Re: Post your handy self made command line utilities

#1556 2011-10-01 13:53:13

Re: Post your handy self made command line utilities

#1557 2011-10-01 13:56:42

Re: Post your handy self made command line utilities

#1558 2011-10-06 17:56:19

Re: Post your handy self made command line utilities

#1559 2011-10-07 00:53:45

Re: Post your handy self made command line utilities

#1560 2011-10-07 18:30:19

Re: Post your handy self made command line utilities

#1561 2011-10-08 10:42:41

Re: Post your handy self made command line utilities

#1562 2011-10-14 08:52:33

Re: Post your handy self made command line utilities

#1563 2011-10-16 22:32:52

Re: Post your handy self made command line utilities

#1564 2011-10-17 01:34:08

Re: Post your handy self made command line utilities

#1565 2011-10-17 01:47:47

Re: Post your handy self made command line utilities

#1566 2011-10-21 14:28:17

Re: Post your handy self made command line utilities

#1567 2011-10-21 14:30:57

Re: Post your handy self made command line utilities

#1568 2011-10-21 14:45:47

Re: Post your handy self made command line utilities

#1569 2011-10-21 14:46:50

Re: Post your handy self made command line utilities

#1570 2011-10-21 14:49:28

Re: Post your handy self made command line utilities

#1571 2011-10-21 14:56:36

Re: Post your handy self made command line utilities

#1572 2011-10-21 15:00:27

Re: Post your handy self made command line utilities

#1573 2011-10-21 15:06:02

Re: Post your handy self made command line utilities

#1574 2011-10-21 15:58:31

Re: Post your handy self made command line utilities

#1575 2011-10-23 20:29:28

Re: Post your handy self made command line utilities

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