shell scripting newbie needs help

[moepower]

Is it possible to find the differences between two files and spool it to a new files?

ie.

File 1 has
line a
line b
line c

File 2 has
line a
line c
line d

I need the result file to have

del line b
add line d

Is this doable?

Thanks,

 

[tdatgod]

Look at the man page for diff

diff -e ( or is it diff -f ...look at the man page )

will build an ED script of commands to transform file 1 into file 2.

is this what you are lookin for?

 

[bigoldbulldog]

diff is the way to go.

Here's a solution exactly as asked.

diff "File 1" "File 2" | sed '
/[<>]/{
s/</del/
s/>/add/
b
}
d' Cheers,
ND

bigoldbulldog@hotmail.com

 

[moepower]

Thanks a bunch . That's what I needed.