Shell Programming and Scripting

Hi,

I wanted to compare EDI files present in Two different Directories which can be related by the file names. While comparing the EDI files i have to skip selected segments such as "ISA" "IEA" and "GS" "GE" since this may have datetime stamp and different "Sender" "Receiver" Qual.

and create a report based on this. The directories may have unequal number of files. (i.e) some files may not have a pair in the other directory so have to be take care too..

Regards,
Siva

Look at the (GNU) diffutils' diff command and its -I option, which allows you to compare changes between two files, but ignoring lines that match the regular expression after -I.

to do the directories, this shell fragment should get you started:

Code:

ls -1 $dir1 |
while read FILE; do
   if [ -f $dir2/$FILE ]; then
       diff -I "^(GS|GE|IEA|ISA)" $dir1/$FILE $dir2/$FILE
   fi
done

Hi,

Thanks for the reply.. but my AIX system doesn't have that option "-I" you mentioned for the "diff" function.

>man diff doesn't show that option available.

Can you kindly help.

Yes, install the GNU diffutils.