CODEWITHSUNDEEP
parsingunixindexinggrepdiff
Alexander Kleinhans
Alexander Kleinhans

Reputation: 6258

difference of lines to file without diff tags

I just want to take the difference of two files and write them to another without patch tags like + or - or diff tags like > or <. I understand how patches work and how to use the following commands:

diff file1.txt file2.txt | grep ">" > difffile.txt
diff -u file1.txt file2.txt > difffile.patch
patch original.txt < difffile.patch

but when I open my difffile.txt from the first command, I get something like this:

> some line of text
> some other line of text

when what I reallly want is:

some line of text
some other line of text

I thought that maybe indexing the string like

${stringname:2}

would work, but I don't know how to use that with grep or how to index a grep string.

I'm actually parsing html and xml and just want the values differences in some file. I don't know how to do that.

Upvotes: 0

Views: 38

Answers (1)

fedorqui
fedorqui

Reputation: 290415

If you just want to remove the first two characters of every line, cut is your friend:

cut -c3- file

Test

$ cat a
hello this is me
and this is you
$ cut -c3- a
llo this is me
d this is you

Upvotes: 1

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