I am trying to compare two text files and output the difference to another file.
I'm not strictly looking for differences in text but additional text at the end of one file that isn't in another, so basically comparing the file 2 against file 1 and printing any additional text to file 3.
Code
the following is an error output when I run the script:
Error code:
> /usr/asm/atl.1001/user_data/error_logs/LOG1001.TXT^J^J^J: cannot open
Any help greatly appreciated!
It appears that you do not have permission to create /usr/asm/atl.1001/user_data/error_logs/LOG1001.TXT if it doesn't already exist, or you do not have permission to erase the current contents and write new data to that file if it does already exist. What is the output of the command:
after you get that error message?
Just out of curiosity, why do you want to remove the first character of the system's node name when creating a log file for that system?
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 REDHAT
sdiff
SDIFF(1) GNU Tools SDIFF(1)NAME
sdiff - find differences between two files and merge interactively
SYNOPSIS
sdiff -o outfile [options] from-file to-file
DESCRIPTION
The sdiff command merges two files and interactively outputs the results to outfile.
If from-file is a directory and to-file is not, sdiff compares the file in from-file whose file name is that of to-file, and vice versa.
from-file and to-file may not both be directories.
sdiff options begin with -, so normally from-file and to-file may not begin with -. However, -- as an argument by itself treats the
remaining arguments as file names even if they begin with -. You may not use - as an input file.
sdiff without -o (or --output) produces a side-by-side difference. This usage is obsolete; use diff --side-by-side instead.
Options
Below is a summary of all of the options that GNU sdiff accepts. Each option has two equivalent names, one of which is a single letter
preceded by -, and the other of which is a long name preceded by --. Multiple single letter options (unless they take an argument) can be
combined into a single command line argument. Long named options can be abbreviated to any unique prefix of their name.
-a Treat all files as text and compare them line-by-line, even if they do not appear to be text.
-b Ignore changes in amount of white space.
-B Ignore changes that just insert or delete blank lines.
-d Change the algorithm to perhaps find a smaller set of changes. This makes sdiff slower (sometimes much slower).
-H Use heuristics to speed handling of large files that have numerous scattered small changes.
--expand-tabs
Expand tabs to spaces in the output, to preserve the alignment of tabs in the input files.
-i Ignore changes in case; consider upper- and lower-case to be the same.
-I regexp
Ignore changes that just insert or delete lines that match regexp.
--ignore-all-space
Ignore white space when comparing lines.
--ignore-blank-lines
Ignore changes that just insert or delete blank lines.
--ignore-case
Ignore changes in case; consider upper- and lower-case to be the same.
--ignore-matching-lines=regexp
Ignore changes that just insert or delete lines that match regexp.
--ignore-space-change
Ignore changes in amount of white space.
-l
--left-column
Print only the left column of two common lines.
--minimal
Change the algorithm to perhaps find a smaller set of changes. This makes sdiff slower (sometimes much slower).
-o file
--output=file
Put merged output into file. This option is required for merging.
-s
--suppress-common-lines
Do not print common lines.
--speed-large-files
Use heuristics to speed handling of large files that have numerous scattered small changes.
-t Expand tabs to spaces in the output, to preserve the alignment of tabs in the input files.
--text Treat all files as text and compare them line-by-line, even if they do not appear to be text.
-v
--version
Output the version number of sdiff.
-w columns
--width=columns
Use an output width of columns. Note that for historical reasons, this option is -W in diff, -w in sdiff.
-W Ignore horizontal white space when comparing lines. Note that for historical reasons, this option is -w in diff, -W in sdiff.
SEE ALSO cmp(1), comm(1), diff(1), diff3(1).
DIAGNOSTICS
An exit status of 0 means no differences were found, 1 means some differences were found, and 2 means trouble.
GNU Tools 22sep1993 SDIFF(1)