how to show only unique words between two files

Dr_Death_UAE · 02-23-2011, 01:46 AM

Hi, i have to files

Quote:

File1:
Hi, My name is John smith

Quote:

File2:
Hi, My name is smith

I want to show only the different or unique word between the two files (John)

i was trying to get it with diff, comm, sort, uniq, grep, awk, sed

but no luck, if anyone have an idea how to do it please advice

Thanks

EricTRA · 02-23-2011, 02:03 AM

Hello,

Have a look at wiggle. This tool can do word based comparison. The different word will be put between <<<-- word-->>>.

Kind regards,

Eric

Dr_Death_UAE · 02-23-2011, 02:26 AM

thanks EricTRA, but is there a way to do it with shell commands

EricTRA · 02-23-2011, 02:32 AM

Hello,

I'm sure there will be but it will involve some scripting, like in the following thread I found, which has a Python and Awk example. Is there a special reason why you don't want to install a tool but prefer writing a script? Besides the obvious reason of learning?

Kind regards,

Eric

akelder · 02-23-2011, 03:10 AM

This is probably goofy, but you could put every word on it's own line:

Code:

$ cat file1
Hi, My name is John smith

$ cat file2
Hi, My name is smith

$ sed 's/ /\n/g' file1 > file1.tmp
$ sed 's/ /\n/g' file2 > file2.tmp

$ comm -3 file1.tmp file2.tmp
John

$ sort file1.tmp file2.tmp | uniq -u
John

Dr_Death_UAE · 02-23-2011, 05:18 AM

i want to include this code in a shell script that will be use in a different machines, it's better to make it run with the basic linux shell commands.

thanks akelder, this what i was looking for, i pipe the commands and it work fine:

Quote:

$ cat file1 file2 | sed 's/ /\n/g' | sort | uniq -u
john