The pipeline that you're running is:
Please just enter the command:
and look at the output produced. Note that this command is the first command in your pipeline after the shell expands the file1 and file2 variables.
Note that there are lines starting with < which identify lines that are in file2, but not in file1; lines starting with > which identify lines that are in file1, but not in file2; and lines not starting with < or > that indicate where the lines starting with < and > appear in the files. The second stage in your pipeline:
says that you want to discard all of the output produced by diff except for the lines that have < as the first character on the line. This means that you are throwing away all of the information that tells you whether the lines you have selected are lines that are different in file1 than they are in file2 or are only present in file2. You are also throwing away all of the information that shows lines that are in file2, but not present in file1; lines that show how a line that changed appears in file2; and lines that were in file1, but are not present in file2; and all of the lines that indicate where lines that were added, deleted, or changed appear in these files.
If this is what you want and you also want to throw away the first two characters (< and space) from the remaining lines, replace the
in your pipeline with:
I have to compare two files for any differences, then output the lab and question number for any differences. This is what I currently have:
diff lab2.txt lab2answer.txt > lab2compare.txt
Though the output doesn't have to be sent to a .txt (or any sort of log), I found that easier, at least... (2 Replies)
I have two files like this:
#FILE 1
ABCD 4322 26485
JMTJ 5311 97248
XMPJ 4321 58978
#FILE 2
ABCD 4321 26485
JMTJ 5311 97248
XMPJ 4321 68978
What to do: Compare the two files and find those lines that doesn't match. And have a new file like this:
#FILE 3
"from file 1"
ABCD 4322 26485... (11 Replies)
Hi there,
I'm sure this question has been asked many times but I can't find any posts with information.
How can I check the differences between say lines 20 - 200 in file1 and lines 420 - 600 in file2?
Thanks in advance for any help!
js (2 Replies)
I know the diff does this but it does output more info than just the different text
(e.g.
$ diff file1 file2
29a30
> /home/alex/Pictures/hello.jpg
1694a1696
> /home/alex/Pictures/hi.jpg
)
How can I make it output only
/home/alex/Pictures/hello.jpg
/home/alex/Pictures/hi.jpg
?
thank... (2 Replies)
It seems like a common task, but I haven't been able to find the solution.
vitallog.txt
1310,John,Hancock
13211,Steven,Mills
122,Jane,Doe
138,Thoms,Doe
1500,Micheal,May
vitalinfo.txt
12122,Jane,Thomas
122,Janes,Does
123,Paul,Kite
**OUTPUT**
vitalfiltered.txt
12122,Jane,Thomas... (2 Replies)
Hi all,
i have 50 files .data should be same in these 50 files , so my task is to find the difference. i need a logic , which finds difference between all files and print in output file with file name where it found that difference .
i tried below logic , but its not giving me what i want.
let... (2 Replies)
I have 2 files of almost same text apart from 2,3 ending lines. Now I want to get that difference in another file.
e.g file1.txt is
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_livecd-lv_root
18G 2.4G 15G 14% /
tmpfs 504M ... (12 Replies)
Hi All,
Am trying script to compare 2 files and print the difference found from old file to new file on line by line basis on side by side display.
Basically line by line comparision and files may contain blank line as well
I know we have compare/diff commands but i don't how to make... (10 Replies)
Discussion started by: Optimus81
10 Replies
LEARN ABOUT DEBIAN
sgmldiff
SGMLDIFF(1)SGMLDIFF(1)NAME
sgmldiff - Find differences in the markup of two SGML files
SYNOPSIS
sgmldiff [ options ... ] file1 file2 [ -a | --attributes
| -c [ attributes | nesting | textpos ] | --context [ attributes | nesting | textpos ]
| -s | --statistics
| -h | --help
| -v | --version ]
DESCRIPTION
This perl script allows to determine the structural differences between two SGML files. It compares the files, regardless of what is in
between the tags, to only focus on the markup. Its output is similar to diff(1).
The typical use of sgmldiff is to compare an SGML file with its translation into another language. If the translation was done cleanly,
sgmldiff returns without finding any difference in the markup.
An example of a typical call to sgmldiff is:
sgmldiff english.sgml italiano.sgml
If there are differences in markup between both files, sgmldiff will output a series of differences reports summarized with lines of the
form:
169a164
At line 169 of the first file, line 164 of the second file has been added.
8a12,15
At line 8 of the first file, lines 12 to 15 of the second file have been added.
41d28 Line 41 of the first file has been destroyed, to obtain line 28 of the second file.
63,66d61
Lines 63 to 66 of the first file have been destroyed. to obtain line 61 of the second file.
52c51 Line 52 of the first file has been changed into line 51 of the second file.
5,7c8,10
Lines 5 to 7 of the first file have been changed into lines 8 to 10 of the second line. In addition to those summaries, the lines
of the first file are shown preceeded by '<' and the lines of the second file are shown preceeded by '>".
OPTIONS
Here is the list of actions that can be requested to sgmldiff:
[ -a | --attributes ]
Include the attribute values in the difference tests. Don't set this value if the attributes are likely to be translated. Set this
value if the attributes value shouldn't change between both files. Default is to don't include the attributes in the difference
tests.
[ -c [ attributes | nesting | textpos ] | --context [ attributes | nesting | textpos ] ]
Add more context to the difference. Since every test between the tags is removed before testing the differences, sgmldiff is likely
to resynchronize itself at the wrong place, by thinking the location in both files correspond, while it's not true. By adding more
context to the compared area, such risk is disminished.
The allowed values for the --context option are:
attributes
Take into account the attribute names. The attribute values are controlled by the attributes option.
nesting
Take into account the nesting level of all the compared tags.
textpos
Take into account the position in the text.
[ -s | --statistics ]
Print some SGML information at the end.
[ -h | --help ]
Print a short help message and exit
[ -v | --version ]
Print the version identifier and exit
FILES AUTHORS
Frederik Fouvry
Developer of sgmldiff.
SEE ALSO jw(1)
conversion from a SGML file to other file formats
nsgmls(1)
a base component of Jade DSSSL engine
http://sources.redhat.com/docbook-tools/ <URL:http://sources.redhat.com/docbook-tools/>
the home page of the DocBook tools, a compendium of all tools necessary to process DocBook files, including the DocBook-utils
12 September 2012 SGMLDIFF(1)