Post your handy self made command line utilities

karol · 2012-08-24 16:52:03

Total, blank, non-blank:

wc -l < $filename
grep -c '^$' $filename
grep -cv '^$' $filename

Last edited by karol (2012-08-24 16:52:49)

Trilby · 2012-08-24 16:53:55

You should probably check out `wc`, specifically `wc -l` to get the total lines, and

grep -v "^ *$" filename | wc -l

to get a nonblank line count.

Edit: too slow ... but I just learned about grep's -c option. Cool.

Last edited by Trilby (2012-08-24 16:55:17)

wuyingren · 2012-08-24 17:37:41

Damn, @karol is right

The fact is that i wanted the script to detect CRLF also, but then I discovered dos2unix....and then it seems I forgot about wc... : (

Anyway, it was good for my bash learning : P

pilotkeller · 2012-08-26 01:30:35

This is a beautiful way I run Radio Paradise. Though, most other internet radio stations would work with a simple URL switch.

#!/bin/zsh

kill -9 `ps x | grep "mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput http://stream-sd.radioparadise.com:9000/rp_32.ogg" | grep -v "grep" | cut -f 2 -d\ ` 2>/dev/null
if [ $? = 1 ]; then
    mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput http://stream-sd.radioparadise.com:9000/rp_32.ogg &
fi

Last edited by pilotkeller (2012-08-26 01:47:42)

karol · 2012-08-26 11:25:31

pilotkeller wrote:

This is a beautiful way I run Radio Paradise. Though, most other internet radio stations would work with a simple URL switch.

#!/bin/zsh

kill -9 `ps x | grep "mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput http://stream-sd.radioparadise.com:9000/rp_32.ogg" | grep -v "grep" | cut -f 2 -d\ ` 2>/dev/null
if [ $? = 1 ]; then
    mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput http://stream-sd.radioparadise.com:9000/rp_32.ogg &
fi

Why not use 'pkill mplayer' to kill it?

Awebb · 2012-08-26 12:22:43

Because one never knows what instance pkill kills?

karol · 2012-08-26 12:42:51

Awebb wrote:

Because one never knows what instance pkill kills?

Not sure if I get what you mean, but would

kill -9 $(pgrep -fo radioparadise)

be better?

steve___ · 2012-08-26 13:01:03

Maybe somethinng like:

 { mplayer ... & pid=$!; }; wait; kill $pid

pilotkeller · 2012-08-26 16:54:53

karol wrote:

Why not use 'pkill mplayer' to kill it?

Because I often watch lectures and then pause them as my mind hits the wall. This would kill them.

karol wrote:

kill -9 $(pgrep -fo radioparadise)

Problem is that mplayer threads into two for web streams so the script would run twice before it worked as intended.

steve___ wrote:

{ mplayer ... & pid=$!; }; wait; kill $pid

And this is why I wrote the script. The content is a stream, so it never exits. lol

MISTAKE: cut -f 2 should be cut -f 1 -- This came from starting with ps aux but changed it to limit entries.

Last edited by pilotkeller (2012-08-26 17:03:38)

karol · 2012-08-26 17:17:52

pilotkeller wrote:

karol wrote:
kill -9 $(pgrep -fo radioparadise)
Problem is that mplayer threads into two for web streams

I know.

pilotkeller wrote:

so the script would run twice before it worked as intended.

Seems to work for me - I just need to run it once and 'kill' works w/o the '-9' flag too:

kill $(pgrep -fo radioparadise)

pilotkeller · 2012-08-26 17:30:49

karol wrote:

Seems to work for me - I just need to run it once and 'kill' works w/o the '-9' flag too:
kill $(pgrep -fo radioparadise)

Lions, and Tigers, and Shell, OH MY!

When you send SIGTERM vs SIGKILL it stops both!

#!/bin/zsh

kill $(pgrep -fo radioparadise) 2>/dev/null
if [ $? = 1 ]; then
    mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput http://stream-sd.radioparadise.com:9000/rp_32.ogg &
fi

Thanks karol! <3

steve___ · 2012-08-26 17:31:57

@Karol: The problem is any 'radioparadise' will match. Eg:

$ vim radioparadise
$ pgrep -fo radioparadise

Last edited by steve___ (2012-08-26 17:32:34)

pilotkeller · 2012-08-26 17:36:19

If there is that much worry just use

#!/bin/zsh

stream_url="http://stream-sd.radioparadise.com:9000/rp_32.ogg"

kill $(pgrep -fo $stream_url) 2>/dev/null
if [ $? = 1 ]; then
    mplayer -msglevel all=-1 -noconsolecontrols -nojoystick -nolirc -nomouseinput $stream_url &
fi

Last edited by pilotkeller (2012-08-26 17:42:40)

karol · 2012-08-26 17:37:20

steve___ wrote:

@Karol: The problem is any 'radioparadise' will match. Eg:
$ vim radioparadise
$ pgrep -fo radioparadise

Sure, but e.g.

kill $(pgrep -fo stream-sd.radioparadise)

is less likely to cause problems.

Edit: Too late ;P

pilotkeller wrote:

When you send SIGTERM vs SIGKILL it stops both!

The '-o' flag of pgrep acts against the oldest process, otherwise you get an error about the other (newer) process being already gone:

$ pgrep -f stream-sd.radioparadise
1946
1947
$ kill $(pgrep -f stream-sd.radioparadise)
bash: kill: (1947) - No such process

Last edited by karol (2012-08-26 17:42:57)

pilotkeller · 2012-08-26 17:46:55

karol wrote:

pilotkeller wrote:
When you send SIGTERM vs SIGKILL it stops both [threads]! :O

No no. When you run plain kill it sends a SIGTERM. The -9 makes it a SIGKILL. Although a SIGTERM is always prefered, many programs don't handle SIGTERMs so SIGKILL is what gets used by habbit. lol

Edit: Probably my bad for the :O. The icon makes it more paniced then shocked. lol

Last edited by pilotkeller (2012-08-26 17:54:27)

karol · 2012-08-26 19:33:58

Ah, now I get what you meant.

BTW,

pkill -f "http://stream-sd.radioparadise.com:9000/rp_32.ogg"

works too ;P

brenix · 2012-08-29 16:11:06

Here is a basic script I wrote in just a few minutes to take a xresources colorscheme and print out a reg file to import in windows for use with putty/kitty. By default, it sets the registry path for use with Kitty, but I put another line in there that can be un-commented to use with putty. Could be improved, but I thought I'd share so others can make it better!

Usage: Pass a .Xdefaults file or file containing colors
Example:

> xcolorstoreg.sh .Xdefaults
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\9bis.com\KiTTY\Sessions\Default%20Settings]
"Colour0"="220,220,204"
"Colour1"="220,220,204"
"Colour2"="58,58,58"
"Colour3"="58,58,58"
"Colour4"="220,220,204"
"Colour5"="220,220,204"
"Colour6"="30,35,32"
"Colour7"="112,144,128"
"Colour8"="112,80,80"
"Colour9"="220,163,163"
"Colour10"="96,180,138"
"Colour11"="195,191,159"
"Colour12"="223,175,143"
"Colour13"="240,223,175"
"Colour14"="80,96,112"
"Colour15"="148,191,243"
"Colour16"="220,140,195"
"Colour17"="236,147,211"
"Colour18"="140,208,211"
"Colour19"="147,224,227"
"Colour20"="220,220,204"
"Colour21"="255,255,255"

Source:

#!/bin/bash

xfile=$1
fallbackbg="0,0,0"
fallbackfg="170,170,170"

function hex2rgb () {
        hexinput=$1
        a=`echo $hexinput | cut -c-2`
        b=`echo $hexinput | cut -c3-4`
        c=`echo $hexinput | cut -c5-6`
        r=`echo "ibase=16; $a" | bc`
        g=`echo "ibase=16; $b" | bc`
        b=`echo "ibase=16; $c" | bc`
        echo "$r,$g,$b"
}

while read line
do
        colorname=$(echo $line | tr [:lower:] [:upper:] | sed 's/:.*//g' | sed 's/.*\*//g')
        hexcolor=$(echo $line | tr [:lower:] [:upper:] | sed 's/.*#//g')
        case "$colorname" in
                FOREGROUND)
                        foreground=$(hex2rgb $hexcolor)
                        ;;
                BACKGROUND)
                        background=$(hex2rgb $hexcolor)
                        ;;
                COLOR0)
                        black0=$(hex2rgb $hexcolor)
                        ;;
                COLOR8)
                        black1=$(hex2rgb $hexcolor)
                        ;;
                COLOR1)
                        red0=$(hex2rgb $hexcolor)
                        ;;
                COLOR9)
                        red1=$(hex2rgb $hexcolor)
                        ;;
                COLOR2)
                        green0=$(hex2rgb $hexcolor)
                        ;;
                COLOR10)
                        green1=$(hex2rgb $hexcolor)
                        ;;
                COLOR3)
                        yellow0=$(hex2rgb $hexcolor)
                        ;;
                COLOR11)
                        yellow1=$(hex2rgb $hexcolor)
                        ;;
                COLOR4)
                        blue0=$(hex2rgb $hexcolor)
                        ;;
                COLOR12)
                        blue1=$(hex2rgb $hexcolor)
                        ;;
                COLOR5)
                        magenta0=$(hex2rgb $hexcolor)
                        ;;
                COLOR13)
                        magenta1=$(hex2rgb $hexcolor)
                        ;;
                COLOR6)
                        cyan0=$(hex2rgb $hexcolor)
                        ;;
                COLOR14)
                        cyan1=$(hex2rgb $hexcolor)
                        ;;
                COLOR7)
                        white0=$(hex2rgb $hexcolor)
                        ;;
                COLOR15)
                        white1=$(hex2rgb $hexcolor)
                        ;;
                *)
                        echo "WTF!" > /dev/null
                        ;;
        esac
done < $xfile

if [ -z "$foreground" ]; then
        foreground=$fallbackfg
fi

if [ -z "$background" ]; then
        background=$fallbackbg
fi

echo "Windows Registry Editor Version 5.00"
echo ""
# FOR USE WITH PUTTY
#echo "[HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions\Default%20Settings]"
# FOR USE WITH KITTY
echo "[HKEY_CURRENT_USER\Software\9bis.com\KiTTY\Sessions\Default%20Settings]"
echo -e "\"Colour0\"=\"$foreground\""
echo -e "\"Colour1\"=\"$foreground\""
echo -e "\"Colour2\"=\"$background\""
echo -e "\"Colour3\"=\"$background\""
echo -e "\"Colour4\"=\"$foreground\""
echo -e "\"Colour5\"=\"$foreground\""
echo -e "\"Colour6\"=\"$black0\""
echo -e "\"Colour7\"=\"$black1\""
echo -e "\"Colour8\"=\"$red0\""
echo -e "\"Colour9\"=\"$red1\""
echo -e "\"Colour10\"=\"$green0\""
echo -e "\"Colour11\"=\"$green1\""
echo -e "\"Colour12\"=\"$yellow0\""
echo -e "\"Colour13\"=\"$yellow1\""
echo -e "\"Colour14\"=\"$blue0\""
echo -e "\"Colour15\"=\"$blue1\""
echo -e "\"Colour16\"=\"$magenta0\""
echo -e "\"Colour17\"=\"$magenta1\""
echo -e "\"Colour18\"=\"$cyan0\""
echo -e "\"Colour19\"=\"$cyan1\""
echo -e "\"Colour20\"=\"$white0\""
echo -e "\"Colour21\"=\"$white1\""

Last edited by brenix (2012-08-29 16:29:08)

Shark · 2012-08-29 16:33:43

I use dropbox for storing some backups. This is a script i have made to fully automate it. I use gpg encryption of tar file too when uploading to dropbox.

#!/bin/bash                                                                                     
                                                                                                
echo "Compressing folders..."                                                   
echo
echo
tar cvf $(date +%d-%m-%Y).tar /path/to/folders/you/want/to/backup;
echo
echo
echo "Done. Encrypting. Write a password...";
gpg -c $(date +%d-%m-%Y).tar;
echo "Moving to dropbox folder";
echo
mv $(date +%d-%m-%Y).tar.gpg /pathofyour/dropbox/folder;
echo "Removing tar file";
rm $(date +%d-%m-%Y).tar;
echo "tar file removed";
echo "Initializing dropbox daemon";
dropboxd &
sleep 180s;
echo "Closing dropbox daemon";
killall dropbox;
echo "Done!"

Mektub · 2012-08-29 18:19:56

Shark,

nice.

Mektub

Shark · 2012-08-29 19:21:41

Mektub wrote:

Shark,
nice.
Mektub

Thanks. I made it out of realy banal reason. I use KDE and before KDE i used deja dup in XFCE. I like to have as little as possible gtk applications (nothing against them) in my system (yeah, i know. Totally stupid and that was the motive behind the script. I know there is qt based back-up applications out there but i just don't like them. I could use only duplicity but back then it was just to complicated for me

So, laziness and some weird GTK contamination fear can produce new knowledge and creativity

AaronBP · 2012-09-01 16:27:01

Thanks for the people over here for helping me with these:

#!/bin/sh


for i in "$@"; do
	sudo -v
	cower -d "$i" &&
		cd "$i" &&
		makepkg -si --noconfirm
	cd "$OLDPWD"
	rm -rf "$i"
done

#!/bin/sh

cowinstall `cower -uqb --color=never`

mhertz · 2012-09-02 15:16:35

I use a free dropbox account to store all my dot-configs, /etc-configs and other backups, but I don't want to use the dropbox daemon or have any folders synched, and instead prefer to do it manually with two shell functions and the dropbox_uploader.sh script in my '~/.bin' dir:

drop() {
	dropbox_uploader.sh -u <username> -p <password> -f $1 -d /Public -v
}

dget() {
	curl -sO <url_to_dropbox_public_folder>/$1
}

Then when i've e.g. has made some changes to .vimrc, i run

drop .vimrc

and to get a new .vimrc(or overwrite the old):

dget .vimrc

Edit: Ohh, I see there's a syntax change in newer versions, as I haden't updated in a while...

Last edited by mhertz (2012-09-09 21:45:56)

ObliviousGmn · 2012-09-02 19:44:00

Shark wrote:

I use dropbox for storing some backups. This is a script i have made to fully automate it. I use gpg encryption of tar file too when uploading to dropbox.

You've actually inspired me to try this out for my own,
I always been bad at keeping backups of Configs I always mess around with. But now I can do it at a single command.

Preview the script

Steps:
Creates Folder and subFolders
Copies desired files and folders to the "Backup" dir
Creates Package and deletes "Backup" dir
Moves to Dropbox folder.

Keep in mind:
The Packages have the month and year on them. So if you update them within that same month the previous Package will be overwritten. I did this because I don't want too many back up folders.

#!/bin/bash    
#ObliviousGmn                                                                                 
#Automate backup for dropbox w/ pretty colors

USECOLOR="yes"
. /etc/rc.d/functions 

echo

stat_busy "Copying Configs"
mkdir Backups
mkdir Backups/Ncmpcpp
mkdir Backups/Weechat

cp .xinitrc Backups
cp .Xdefaults Backups
cp .bashrc Backups
cp .vimrc Backups

cp ~/.ncmpcpp/config Backups/Ncmpcpp/
cp ~/.weechat/weechat.conf Backups/Weechat/
cp ~/.weechat/irc.conf Backups/Weechat/

cp -ar ~/.config/luakit Backups
cp -ar ~/.config/openbox Backups
cp -ar ~/.config/ranger Backups
cp -ar ~/.config/tint2 Backups
cp -ar ~/Customize Backups
cp -ar ~/.themes/Gmnbox Backups
stat_done                                                                                                

stat_busy "Creating Backup Folder"
tar cf Backup_$(date +%m%Y).tar Backups;
stat_done

stat_busy "Sweeping up"
rm -rf Backups/
mv Backup_$(date +%m%Y).tar ~/.DropBox/Dropbox/;
stat_done

echo

Last edited by ObliviousGmn (2012-09-02 19:49:51)

illusionist · 2012-09-03 01:25:04

# Script to optimize Archlinux mirrors by speed and sync status

1. Makes a backup of your existing mirrorlist and updates it according to mirror status.
2. Needs reflector.

#!/bin/bash
#
# Script to optimize Archlinux mirrors by speed and sync status
# Author: Illusionist
#

if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root" 1>&2
exit 1
fi

function progress {
  chars=( "-" "\\" "|" "/" )
  interval=0.2
  count=0

  while true
  do
    pos=$(($count % 4))
    echo -en "\b${chars[$pos]}"
    count=$(($count + 1))
    sleep $interval
  done
}


function stop_progress {
  exec 2>/dev/null
  kill $1
  echo -en "\bdone!\n"
}


function halt_progress {
  exec 2>/dev/null && cp /etc/pacman.d/mirrorlist.bak /etc/pacman.d/mirrorlist 
  kill $1
  echo -e "\nTerminated by user\nRestored mirrorlist from backup\nFor more information visit: https://wiki.archlinux.org/index.php/Mirror"
}

echo -e "Backing up existing mirrorlist..."
cp /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.bak

echo -n "retrieving latest mirrorlist...."
progress &
pid=$!

trap 'halt_progress $pid; exit' 2
/usr/bin/reflector -l 10 --sort rate --save /etc/pacman.d/mirrorlist.temp


echo -ne "\bdone!\n"
echo -en "sorting mirrors by speed...."


rankmirrors -n 5 /etc/pacman.d/mirrorlist.temp > /etc/pacman.d/mirrorlist

stop_progress $pid

echo -e "\nFor more information visit: https://wiki.archlinux.org/index.php/Mirror"

Last edited by illusionist (2012-12-03 20:41:34)

AaronBP · 2012-09-05 06:21:17

Get info from whatever package owns a file:

#!/bin/sh
package=$(pacman -Qqo "$1")
pacman -Qi $package

Arch Linux

#1901 2012-08-24 16:52:03

Re: Post your handy self made command line utilities

#1902 2012-08-24 16:53:55

Re: Post your handy self made command line utilities

#1903 2012-08-24 17:37:41

Re: Post your handy self made command line utilities

#1904 2012-08-26 01:30:35

Re: Post your handy self made command line utilities

#1905 2012-08-26 11:25:31

Re: Post your handy self made command line utilities

#1906 2012-08-26 12:22:43

Re: Post your handy self made command line utilities

#1907 2012-08-26 12:42:51

Re: Post your handy self made command line utilities

#1908 2012-08-26 13:01:03

Re: Post your handy self made command line utilities

#1909 2012-08-26 16:54:53

Re: Post your handy self made command line utilities

#1910 2012-08-26 17:17:52

Re: Post your handy self made command line utilities

#1911 2012-08-26 17:30:49

Re: Post your handy self made command line utilities

#1912 2012-08-26 17:31:57

Re: Post your handy self made command line utilities

#1913 2012-08-26 17:36:19

Re: Post your handy self made command line utilities

#1914 2012-08-26 17:37:20

Re: Post your handy self made command line utilities

#1915 2012-08-26 17:46:55

Re: Post your handy self made command line utilities

#1916 2012-08-26 19:33:58

Re: Post your handy self made command line utilities

#1917 2012-08-29 16:11:06

Re: Post your handy self made command line utilities

#1918 2012-08-29 16:33:43

Re: Post your handy self made command line utilities

#1919 2012-08-29 18:19:56

Re: Post your handy self made command line utilities

#1920 2012-08-29 19:21:41

Re: Post your handy self made command line utilities

#1921 2012-09-01 16:27:01

Re: Post your handy self made command line utilities

#1922 2012-09-02 15:16:35

Re: Post your handy self made command line utilities

#1923 2012-09-02 19:44:00

Re: Post your handy self made command line utilities

#1924 2012-09-03 01:25:04

Re: Post your handy self made command line utilities

# Script to optimize Archlinux mirrors by speed and sync status

#1925 2012-09-05 06:21:17

Re: Post your handy self made command line utilities

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