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Full Discussion: [Bash] Beginner at scripting
Top Forums Shell Programming and Scripting [Bash] Beginner at scripting Post 302480392 by Chubler_XL on Tuesday 14th of December 2010 06:58:03 PM
Old 12-14-2010
Not quite sure what is going on here, but there is a lot of duplication of code and the following should be functionally equilivent, without the duplicated code.

It's quite normal to use the "[" construct instead of test and tends to make things a little more readable.

Code:
#!/bin/bash
 
url=$1
category=$2
 
wget $1
 
for ext in jpg jpeg png
do
    filename=$(ls *.$ext)
    if [ $? -eq 2 ]; then
        cp /var/www/blogger/scripts/$filename /var/www/blogger/gallery/_thumb/$category
        cp /var/www/blogger/scripts/$filename /var/www/blogger/gallery/$category
        mogrify -resize 160x140 /var/www/blogger/gallery/_thumb/"$category"/$filename
        rm /var/www/blogger/scripts/*.$ext
        break
    fi
done


Note if you dont wan't the error from ls to go to stderr you can redirect this to null like:

Code:
filename=$(ls *.$ext 2> /dev/null)

 

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LEARN ABOUT SUSE

totem-video-thumbnailer

totem-video-thumbnailer(1)												totem-video-thumbnailer(1)

NAME

       totem-video-thumbnailer - video thumbnailer for the GNOME desktop

SYNOPSYS

       totem-video-thumbnailer [-j|--jpeg] [-l|--no-limit] [-g num|--gallery num] [-s size] input output [backend options]

DESCRIPTION

       This manual page documents briefly the totem-video-thumbnailer command. This manual page was written for the Debian Project because  the
       original program does not have a manual page.

       totem-video-thumbnailer is used internally by GNOME applications such as nautilus to generate PNG thumbnails of video files. While it is
       possible to invoke it manually, it is usually done automatically by nautilus.

ARGUMENTS

       input   The input filename. This can be in any format that totem can play.

       output  The output filename, output in PNG format.

       backend options
	       Options to be passed to the backend (i.e. gstreamer).

OPTIONS

       -j --jpeg
	       Switch the output format to JPEG. The default is PNG.

       -g num --gallery num
	       Output a gallery of the given number (0 is the default) of screenshots.

       -l --no-limit
	       Don't limit the thumbnailing time to 30 seconds. For debugging purposes.

       -s size The size of the thumbnail. Example: "64x64". The default is "128x96".

AUTHOR

       totem-video-thumbnailer was written by Bastien Nocera <hadess@hadess.net>.

       This manual page was written by Zack Cerza <zcerza@coe.neu.edu> for the Debian Project (but may be used by others).

SEE ALSO

       totem, nautilus

GNOME
								    2009-05-06						totem-video-thumbnailer(1)
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