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Full Discussion: Paste and double loop
Top Forums UNIX for Dummies Questions & Answers Paste and double loop Post 302940091 by Akshay Hegde on Wednesday 1st of April 2015 08:52:51 AM
Old 04-01-2015
Quote:
Originally Posted by A-V
thanks a lot for your help, it worked nicely..
may I ask you to explain few things ?

why the dir1 structure is different from dir2 ?
Code:
dir1="/tmp/test1/*.txt"
dir2="/tmp/test2"

and what does this line do?
Code:
	file="$dir2/$filename"

I used files from dir1 as reference since you said same number of files with exactly same names, $i is file from dir1 and $file is file from dir2 to understand clearly, better you insert below line after file="$dir2/$filename"
Code:
echo "$i $file"

and filename=${i##*/} is parameter substitution is used instead of external basename program. Let me know if you still have confusion.
This User Gave Thanks to Akshay Hegde For This Post:
A-V
 

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LEARN ABOUT OPENSOLARIS

dircmp

dircmp(1)							   User Commands							 dircmp(1)

NAME

       dircmp - directory comparison

SYNOPSIS

       dircmp [-ds] [-w n] dir1 dir2

DESCRIPTION

       The  dircmp  command  examines dir1 and dir2 and generates various tabulated information about the contents of the directories. Listings of
       files that are unique to each directory are generated for all the options. If no option is entered, a list is output indicating whether the
       file names common to both directories have the same contents.

OPTIONS

       The following options are supported:

       -d      Compares  the  contents	of  files with the same name in both directories and output a list telling what must be changed in the two
	       files to bring them into agreement. The list format is described in diff(1).

       -s      Suppresses messages about identical files.

       -w n    Changes the width of the output line to n characters. The default width is  72.

OPERANDS

       The following operands are supported:

       dir1    A path name of a directory to be compared.
       dir2

USAGE

       See largefile(5) for the description of the behavior of dircmp when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ENVIRONMENT VARIABLES

       See environ(5) for descriptions of the following environment variables that affect the execution of dircmp: LC_COLLATE,	LC_CTYPE,  LC_MES-
       SAGES, and NLSPATH.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred. (Differences in directory contents are not considered errors.)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cmp(1), diff(1), attributes(5), environ(5), largefile(5)

SunOS 5.11							    1 Feb 1995								 dircmp(1)
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