Very small prob, But I m stuck !!! Post: 302470594

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Operating Systems Linux Ubuntu Very small prob, But I m stuck !!! Post 302470594 by the.reverser on Wednesday 10th of November 2010 12:31:16 PM

11-10-2010

Registered User

Very small prob, But I m stuck !!!

Hi All,
I m trying to write a small utilities to help me.
I need to create a shell script to which if I give two filenames it will create a some.diff file from that.

I know its very simple, but I am stuck
here is code I have written.

Code:

  1 #this is is diff file generator
  2 
  3 echo $1 $2  
  4 #echo $#
  5 echo script $0 is running in `pwd` directory diff file will be generated in     current directory.
  6 
  7 echo first file enter as $1
  8 echo second file entered as $2
  9 #echo $filename
 10 DIFF_FILENAME=`echo $filename | awk -F"."'{print $1}'`
 11 echo $DIFF_FILENAME
 12 #read DIFF_FILE_NAME 
 13 #diff $1 $2 >

in the line number 10, I am just trying to get diff file name from first file name.
let say have filename1.c, I want the name of diff file as filename1.diff
some how I am not able to cut the name before dot (.) and append the .diff to it.
Anyone please help me out, where I m making mistake.
Thanks in advnace.

~reverser

Last edited by Scott; 11-10-2010 at 03:30 PM.. Reason: Code tags

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LEARN ABOUT DEBIAN

puzzle-diff

PUZZLE-DIFF(1)															    PUZZLE-DIFF(1)

NAME

       puzzle-diff - Compare pictures with libpuzzle

SYNOPSIS

       [-b <contrast barrier for cropping>] [-c] [-C <max cropping ratio>] [-e] [-E <similarity threshold>] [-h] [-H <max height>] [-l <lambdas>]
       [-n <noise cutoff>] [-p <p ratio>] [-t] [-W <max width>] <file 1> <file 2>

DESCRIPTION

       puzzle-diff compares two pictures and outputs the normalized distance.

       Try puzzle-diff -h for more info.

EXAMPLES

       Output distance between two images:

	 $ puzzle-diff pic-a-0.jpg pics-a-1.jpg
	 0.102286

       Compare two images, exit with 10 if they look the same, exit with 20 if they don't (may be useful for scripts):

	 $ puzzle-diff -e pic-a-0.jpg pics-a-1.jpg
	 $ echo $?
	 10

       Compute distance, without cropping and with computing the average intensity of the whole blocks:

	 $ puzzle-diff -p 1.0 -c pic-a-0.jpg pic-a-1.jpg
	 0.0523151

AUTHORS

       Frank DENIS libpuzzle at pureftpd dot org

SEE ALSO

       libpuzzle(3), puzzle_set(3)

								    2012-05-09							    PUZZLE-DIFF(1)

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