UNIX for Dummies Questions & Answers

Hmm.
Please post the output from this command which is designed to make invisible characters visible. I suspect that your data files are in MSDOS text file format not unix text file format.

Code:

sed -n l file1

sed -n l file2

try this.

diff file1 file2|grep ^[\>,\<]

diff does not need sort, comm needs sorted unique data (sometimes I count the dups with uniq -c and move the count to the right end using sed between sort and comm). If you want the original order, diff is the right tool, and do not overlook the options.

This is complete and utter gibberish.

The issue which the O/P faces is that the "diff" command outputs the diferences in context complete with irrelevent lines and other output. This form of screen output is useless for further data processing.
The O/P wishes to process the differences.

However the input data files are clearly not unix text format so the whole concept is academic.

grep -v -f File1 File2 > File3

diff file1 file2|grep ^[\>,\<] fetched me this ....
> 2
> 2
> 3
Sheel: tried your command..got this error....grep: illegal option -- f
Guys, any help is highly appreciated.

---------- Post updated at 07:25 AM ---------- Previous update was at 07:15 AM ----------

Methyl: sed -n l file1 is not working
error message: syntax error at line 3 : `(' unexpected
ksh: 22599 Segmentation Fault(coredump)

What Operating System and version are you running?
What Shell are you using?
Are you using a Microsoft Windows editor instead of a unix/Linux editor to prepare test data and/or scripts?


These commands should work. Type them at the command prompt while in the same directory as file1 and file2. The error message you report relates to misplaced quotes and there aren't any in these commands.

Code:

sed -n l file1

sed -n l file2