Post your handy self made command line utilities

rson451 · 2009-04-08 12:49:03

b3n wrote:

dmenu application launcher, with your most used applications listed first and you can append a ";" to start the program in a terminal.

Nice and simple. Very nice.

Paper Lawyer · 2009-04-08 13:19:55

markp1989 wrote:

this 1 checks the weather from the bbc site, then uses feh to change the wallpaper accordiingly. i have this set to run every hour in cron.
#!/bin/bash
curl http://feeds.bbc.co.uk/weather/feeds/rss/obs/world/0008.xml  >/dev/null 2>&1 > .weatherfeedrs
##Set wallpaper depending on current conditions. 
if grep -qw  rain .weatherfeedrs  ; then 
feh --bg-scale /home/mark/weatherwallpapers/rain.jpg
elif grep -qw cloudy .weatherfeedrs ; then
feh --bg-scale /home/mark/weatherwallpapers/cloudy.jpg
elif grep -qw clear .weatherfeedrs  ; then 
feh --bg-scale /home/mark/weatherwallpapers/clear.jpg
elif grep -qw sunny .weatherfeedrs  ; then 
feh --bg-scale /home/mark/weatherwallpapers/sunny.jpg
else
echo other 
fi

echo `date` `cat .weatherfeedrs | tail -n 13 | head -n 1 |cut -f1 -d'.'` >> ~/weatherhistory
there is probably a lot better way to do this, but this is working for me atm. i have it keep a list of previous weather stats, so i know what syntax bbc use, so i can update the greps accordingly .

This sounds great - I'll give it a go (and ditch nitrogen). Thank you.

rson451 · 2009-04-09 01:47:23

b3n wrote:

dmenu application launcher, with your most used applications listed first and you can append a ";" to start the program in a terminal.

Thanks for this. I took out the cache part, but i have a suggestion. Add $@ behind $DMENU so you can pass it the same options as you would natively.

b3n · 2009-04-09 10:24:12

rson451 wrote:

b3n wrote:
dmenu application launcher, with your most used applications listed first and you can append a ";" to start the program in a terminal.
Thanks for this. I took out the cache part, but i have a suggestion. Add $@ behind $DMENU so you can pass it the same options as you would natively.

#!/bin/sh

TERMI="urxvt -e sh -c"
CACHE="$HOME/.dmenu_cache_recent"

MOST_USED=`sort $CACHE | uniq -c | sort -rn | colrm 1 8`
RUN=`(echo "$MOST_USED"; dmenu_path | grep -vxF "$MOST_USED") | dmenu "$@"` &&
(echo $RUN; head -n 99 $CACHE) > $CACHE.$$ && mv $CACHE.$$ $CACHE
case $RUN in
    *\;) exec $TERMI "$RUN";;
    *) exec $RUN;;
esac

Last edited by b3n (2009-04-10 17:34:31)

brisbin33 · 2009-04-10 17:14:53

so i have my custom aurget script in this thread somewhere that just automates wget/tar/pacman -U to quickly get an aur package.

well, this is a companion script that will check the version of your currently aur-installed packages (pacman -Qm) against the PKGBUILDs' pkgver/pkgrel from aur.archlinux.org.

it prints a nicely formatted list of your aur packages, green for matching version/release (up to date) and red for mismatches (out of date).

#!/bin/bash
#
# AurCheck V 0.1
#
# pbrisbin 2009
#
# script parses aur.archlinux PKGBUILDs and compares
# it to `pacman -Qm` outputs to find out if you've
# got the latest aur package installed
#
###

# Set up a working directory
WD="/tmp/aurcheck"
[ -d $WD ] || mkdir $WD

# print a header row
echo ""
line="$(echo Package Available Installed | \
  awk '{printf "%-30s %20s %20s\n", $1, $2, $3}')"
echo -e "\e[1;37m$line\e[0m"

# list out foreign packages and check the versions
pacman -Qm | while read pack; do
  name="$(echo $pack | awk '{print $1}')"
  pkgver="$(echo $pack | awk '{print $2}' | cut -d "-" -f 1)"
  pkgrel="$(echo $pack | awk '{print $2}' | cut -d "-" -f 2)"
  URL="http://aur.archlinux.org/packages/${name}/${name}/PKGBUILD"
  wget -q -O $WD/PKGBUILD "$URL"

  pkgverN="$(grep ^pkgver $WD/PKGBUILD | cut -d "=" -f 2 | tr -d '"')"
  pkgrelN="$(grep ^pkgrel $WD/PKGBUILD | cut -d "=" -f 2 | tr -d '"')"
  line="$(echo $name ${pkgverN}-${pkgrelN} ${pkgver}-${pkgrel} | awk '{printf "%-30s %20s %20s\n", $1, $2, $3}')"
  
  if [ "${pkgver}-${pkgrel}" = "${pkgverN}-${pkgrelN}" ]; then
    echo -e "\e[0;32m$line\e[0m"
  else
    echo -e "\e[1;31m$line\e[0m"
  fi
done

echo ""

# cleanup
[ -d $WD ] && rm -rf $WD

exit 0

edit: slight optimization.

Last edited by brisbin33 (2009-04-10 17:21:42)

colbert · 2009-04-10 18:46:08

Can someone help me make an alias/script that will check if a partition is mounted, and if not it will mount it and vice versa (if it is mounted, it will unmount it)?? My path is /media/tera. It's an external drive connected via eSata and many automounting solutions haven't worked consistently thus far, and I'd probably rather do it via shell anyhow.

brisbin33 · 2009-04-10 18:55:16

colbert wrote:

Can someone help me make an alias/script that will check if a partition is mounted, and if not it will mount it and vice versa (if it is mounted, it will unmount it)?? My path is /media/tera. It's an external drive connected via eSata and many automounting solutions haven't worked consistently thus far, and I'd probably rather do it via shell anyhow.

i have a check like this in my backup scripts. just make a lock file on the drive (touch /media/tera/.lock). then use this:

#!/bin/bash

DRIVE="/media/tera"

if [ -z $DRIVE/.lock ]; then
  mount $DRIVE
else
  umount $DRIVE
fi

this is if there's an fstab line for it. being root may be required depending on your setup as well.

colbert · 2009-04-10 20:09:03

Thanks a lot brisbin33, that looks awesome. I do have a line for it in fstab (w/noauto). I just tried the script however and it seems to only umount. If the .lock file is there, then it should be unmounted, if it's not there then it should be mounted, no? I tried reversing them and it mounted but then didn't umount. Ack, I'm still a scripting noob so bare with me lol

brisbin33 · 2009-04-10 20:36:59

no worries, sometimes i have issues wrapping my head around when -z (if does not exist) works or not when it's acting on files ($DRIVE/.lock). try this version instead:

#!/bin/bash

DRIVE="/media/tera"

if [ -f $DRIVE/.lock ]; then
  umount $DRIVE
else
  mount $DRIVE
fi

Last edited by brisbin33 (2009-04-10 20:37:25)

colbert · 2009-04-10 20:49:03

Egg-sealant! Works like a charm, thanks a ton

rine · 2009-04-10 22:27:30

Why the extra file?

#!/bin/bash

DRIVE="/media/tera"

if mount | grep -q $DRIVE; then
  umount $DRIVE
else
  mount $DRIVE
fi

brisbin33 · 2009-04-10 22:38:17

rine wrote:

Why the extra file?

#!/bin/bash

DRIVE="/media/tera"

if mount | grep -q $DRIVE; then
  umount $DRIVE
else
  mount $DRIVE
fi

fair enough.

colbert · 2009-04-11 00:05:20

Always many ways to skin a cat huh I added it as function to bash, works great dudes.

I am also trying to add a function that uses find for a string, then copies all results to a specified dir. I have this but it's not working:

findcp() {
    find -iname "$1" -exec cp '{}' $2/ \;
}

So I'd like to use it as "find invoices backup/".

Last edited by colbert (2009-04-11 00:06:05)

brisbin33 · 2009-04-11 02:50:58

colbert,

1) find needs a directory to look in

2) i don't think you need the "/" after "$2" there

`man find` should help you further.

colbert · 2009-04-11 05:16:52

Thanks brisbin33 I realized I wasn't telling find where to look, and also the -iname string was missing the asterisks. This works now:

find $1 -iname "*$2*" -exec cp '{}' $3 \;

Now however I am trying to get it to print the results of the files that have been found and copied over, however I tried -print0 and -printf after checking man find but neither worked.

Varreon · 2009-04-11 23:34:19

Here's a small script to use on these forums to search for text references. When you search, it'll provide you the forum, but not the page with the keyword. On long threads, this is annoying.

#!/usr/bin/python
# FindPost.py
# Forum Search

import urllib

url = raw_input("Enter url: ");  #like http://bbs.archlinux.org/viewtopic.php?id=[THREADID]&p=
pages = raw_input("How many pages is the thread? ");
user = raw_input("String to search: ");

for i in range(1,int(pages)+1):
    page = urllib.urlopen(url+str(i)).read()
    if(page.find(user)!=-1):
        print url+str(i)

halhen · 2009-04-12 09:43:10

In my .bashrc - to start a random shoutcast stream, optionally after searching for content.

radio() {
    killall mpg123; shoutcast-search -n 1 -t mpeg -b ">63" --sort=ln10r $* | xargs mpg123 -q -@ &
}

To start a station playing chill:

$ radio chill

See http://bbs.archlinux.org/viewtopic.php?id=69399 or http://code.k2h.se for more info.

Last edited by halhen (2009-04-12 09:57:01)

Arm-the-Homeless · 2009-04-12 12:34:17

Builds from the ABS. I made it when I started getting into Gentoo.

#!/bin/bash
# Archaeon -- Small ABS Building Script
# By Vithon <ratm@archlinux.us>
if [ "$1" = "" ] ; then
    echo "Archaeon v0.3"
    echo "USAGE:"
    echo "`basename $0` [PACKAGE NAME]"
    echo
    exit 0
fi
ABS_PKG_DIR=`find /var/abs -name "$1"`
ROOT_BUILD_DIR="/tmp/archaeon_build"
PKG_DIR="$ROOT_BUILD_DIR/$1/"
echo "[-] Archaeon starting."
if [ "ABS_PKG_DIR" = "" ] ; then
    echo "[-] ERROR: No packages exist with the name '$1'."
    exit 1
fi
echo "[+] Making build directory..."
mkdir -p "$PKG_DIR"
cd "$PKG_DIR"
echo "[+] Copying files..."
rsync -r "$ABS_PKG_DIR/" "$PKG_DIR/"
echo "[+] Building package..."
makepkg &>build.log
if [ ! -e *.pkg.tar.gz ] ; then
    echo "[-] ERROR: $1 package not built. Check $PKG_DIR/build.log."
    exit 1
fi
echo "[+] Installing $1..."
sudo pacman -U *.pkg.tar.gz &>/dev/null
echo "[+] Cleaning up..."
rm -rf $PKG_DIR
echo "[-] Archaeon finished."

markp1989 · 2009-04-12 12:54:38

Arm-the-Homeless wrote:

Builds from the ABS. I made it when I started getting into Gentoo.

#!/bin/bash
# Archaeon -- Small ABS Building Script
# By Vithon <ratm@archlinux.us>
if [ "$1" = "" ] ; then
    echo "Archaeon v0.3"
    echo "USAGE:"
    echo "`basename $0` [PACKAGE NAME]"
    echo
    exit 0
fi
ABS_PKG_DIR=`find /var/abs -name "$1"`
ROOT_BUILD_DIR="/tmp/archaeon_build"
PKG_DIR="$ROOT_BUILD_DIR/$1/"
echo "[-] Archaeon starting."
if [ "ABS_PKG_DIR" = "" ] ; then
    echo "[-] ERROR: No packages exist with the name '$1'."
    exit 1
fi
echo "[+] Making build directory..."
mkdir -p "$PKG_DIR"
cd "$PKG_DIR"
echo "[+] Copying files..."
rsync -r "$ABS_PKG_DIR/" "$PKG_DIR/"
echo "[+] Building package..."
makepkg &>build.log
if [ ! -e *.pkg.tar.gz ] ; then
    echo "[-] ERROR: $1 package not built. Check $PKG_DIR/build.log."
    exit 1
fi
echo "[+] Installing $1..."
sudo pacman -U *.pkg.tar.gz &>/dev/null
echo "[+] Cleaning up..."
rm -rf $PKG_DIR
echo "[-] Archaeon finished."

thats cool, thanks for this

Arm-the-Homeless · 2009-04-12 13:25:14

It's barely a "Thank you" thing. It can only install one app at a time and messes up when something like this happens:

┌─[andy @ vithon]-[9:28:18]
└─[~]-[$]> find /var/abs -name "vim"
/var/abs/local/vim
/var/abs/extra/vim

markp1989 · 2009-04-12 14:16:31

Wintervenom wrote:

dmenu launcher that displays the friendly names instead of the executable names for applications.

#!/bin/sh
apps='/usr/share/applications'
dmen="dmenu -i -b -fn '-*-terminus-*-r-normal-*-*-120-*-*-*-*-iso8859-*' -nb #000000 -nf #9999CC -sb #000066"
name=$(grep -h "^Name=" $apps/*.desktop | sed 's:Name=::' | $dmen)

if [[ "$name" != "" ]]; then
    dfile=$(grep -l "^Name=$name$" $apps/*.desktop)
    if [[ $(echo "$dfile" | wc -l) > 1 ]]; then
        dfile="$apps/$(echo -e "$dfile" | sed "s:${apps}/::" | $dmen -p "Which $name?")"
    fi
    xdg-open $dfile
fi

Here's another version that combines both friendly and executable names:

#!/bin/sh
apps='/usr/share/applications'
dmen="dmenu -i -b -fn '-*-terminus-*-r-normal-*-*-120-*-*-*-*-iso8859-*' -nb #000000 -nf #9999CC -sb #000066"
name=$(echo -e "$(grep -h "^Name=" $apps/*.desktop | sed 's:Name=::')\n$(dmenu_path)" | $dmen)

if [[ "$name" != "" ]]; then
    dfile=$(grep -l "^Name=$name$" $apps/*.desktop)
    if [ $dfile ]; then
        if [[ $(echo "$dfile" | wc -l) > 1 ]]; then
            dfile="$apps/$(echo -e "$dfile" | sed "s:${apps}/::" | $dmen -p "Which $name?")"
        fi
        xdg-open "$dfile"
    else
        which "$name" &> /dev/null && exec "$name" &
    fi
fi

My shell script skills aren't that clean, so if there's a more efficient way to write those, I'd like to hear the corrections.

in trying to use the top one , and when i run it i get error saying that xdg-open command not found, what package is this part of ?

marxav · 2009-04-12 14:23:20

[marst@xeon afc]$ pacman -Qo `which xdg-open`
/usr/bin/xdg-open is owned by xdg-utils 1.0.2-1

Daenyth · 2009-04-12 15:24:43

You should also check out pkgfile, available in community/pkgtools. It can help you find what package owns a file, among other things.

madeye · 2009-04-12 19:17:33

I made this little script to extract and convert the audio from flv videos to mp3, so I can use it in my car CD player.

Maybe something like this already exists, but I took the opportunity to practice a little at bash scripting

#! /bin/bash

# ************************************
# ** flv to mp3 converter script    **
# ************************************

# If no filename specified. Print error message and exit
if [ $# != 1 ]
then
  echo Usage: $0 inputfile >&2
  exit 1
fi

# If wrong filetype specified. Print error message and exit
if [[ $1 != *.flv ]]
then
  echo FLV file expected!
  echo Usage: $0 inputfile >&2
  exit 1
fi

# Create variable with filename extension removed
FILNAME=${1%.[^.]*}

# Extract audio from flv file using mplayer (placed in same folder as the original file)
mplayer "$1" -vo null -ao pcm:file="$FILNAME.wav"

# Compress extracted file to mp3 using lame (placed in same folder as original file)
lame --preset standard "$FILNAME.wav" "$FILNAME.mp3"

# Remove wav file
rm "$FILNAME.wav"

jumzi · 2009-04-12 20:19:26

Mine is fucking awsome! (I'm sure someone else must have post this)

while true
do 
mpc | grep - | wmiir create /rbar/mpd
sleep 2 
done

You start it trough ~/mpdScript.sh (if you have saved it to mpdScript.sh in your homefolder) and you close by rebooting(?)

It display the song playing in mpd on the wmii statusbar, omg this is awesome, altough i'll be back with improvement laters

EDIT: i had forgotten the "create" after wmiir... fixed now

Last edited by jumzi (2009-04-13 11:29:43)

Arch Linux

#276 2009-04-08 12:49:03

Re: Post your handy self made command line utilities

#277 2009-04-08 13:19:55

Re: Post your handy self made command line utilities

#278 2009-04-09 01:47:23

Re: Post your handy self made command line utilities

#279 2009-04-09 10:24:12

Re: Post your handy self made command line utilities

#280 2009-04-10 17:14:53

Re: Post your handy self made command line utilities

#281 2009-04-10 18:46:08

Re: Post your handy self made command line utilities

#282 2009-04-10 18:55:16

Re: Post your handy self made command line utilities

#283 2009-04-10 20:09:03

Re: Post your handy self made command line utilities

#284 2009-04-10 20:36:59

Re: Post your handy self made command line utilities

#285 2009-04-10 20:49:03

Re: Post your handy self made command line utilities

#286 2009-04-10 22:27:30

Re: Post your handy self made command line utilities

#287 2009-04-10 22:38:17

Re: Post your handy self made command line utilities

#288 2009-04-11 00:05:20

Re: Post your handy self made command line utilities

#289 2009-04-11 02:50:58

Re: Post your handy self made command line utilities

#290 2009-04-11 05:16:52

Re: Post your handy self made command line utilities

#291 2009-04-11 23:34:19

Re: Post your handy self made command line utilities

#292 2009-04-12 09:43:10

Re: Post your handy self made command line utilities

#293 2009-04-12 12:34:17

Re: Post your handy self made command line utilities

#294 2009-04-12 12:54:38

Re: Post your handy self made command line utilities

#295 2009-04-12 13:25:14

Re: Post your handy self made command line utilities

#296 2009-04-12 14:16:31

Re: Post your handy self made command line utilities

#297 2009-04-12 14:23:20

Re: Post your handy self made command line utilities

#298 2009-04-12 15:24:43

Re: Post your handy self made command line utilities

#299 2009-04-12 19:17:33

Re: Post your handy self made command line utilities

#300 2009-04-12 20:19:26

Re: Post your handy self made command line utilities

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