Using dd or similar tools to recover data from 2 damaged cdroms, I need a way to then combine the 2 files, 1 from each cd, and make a good file: this all result from finding that certain cd's tops scratch easily even when using the "proper" cd markers, hence making the file useless, however the... (1 Reply)
Hi,
I have 5 files basically;namely file1.txt situated each at folder A to E respectively.
I would like to extract out third column from each of these file1.txt from folder A to folder E. Also, I wanted to extract the first and second column which are common. In other words, e.g
... (6 Replies)
I need to write a shell script which combines/joins 3 text files into one file. Do i put the txt files in the same folder as my script? Here is what i have:
#!/bin/bash
file1=$1
file2=$2
file3=$3
out="output.txt"
count=0
if
then
echo "$(basename $0) file1 file2 file3"
... (3 Replies)
my first post ... please be gentle.
I have been working on a script to get info out of mysql. Its a support ticket system database OTRS. I can write the subject of open tickets to a text file with a unique user id.
I also have a text file with the unique user id, username and email adres. I... (11 Replies)
Hi, Great minds, I have some files, in fact header files, of CTD profiler, I tried a lot C programming, could not get output as I was expected, because my programming skills are very poor, finally, joined unix forum with the hope that, I may get what I want, from you people,
Here I have attached... (17 Replies)
i made a script on my own. this is for the inventory to all of my AWS servers, and i run it to all of my servers to get the hostname, please look at file2. Then i need some data in file3 as well,. i need to combine them
#cat file1
192.10.1.41
server.age.com
######
192.10.0.40
ssh cant... (10 Replies)
Hi,
How can I combine the data of of three files into one new file?
I try to give as much informations as possible.
The three existing files are called file1 file2 and file3
the new file should named output_combined.
The size of the files will be around 900 words/lines each .. but always... (5 Replies)
Discussion started by: MyMemberName
5 Replies
LEARN ABOUT V7
diff
DIFF(1) General Commands Manual DIFF(1)NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO cmp(1), comm(1), ed(1)DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)