Hello guys..
I have the following question.
lets have that i have the following variable:
$field=werfiurd383nd93bc93 c93 d93 d9e3 ddd
or
array=werfiurd383nd93bc93 c93 d93 d9e3 ddd
what i would like to do is to store the first 4 characters of gthe aboce variable in variable... (1 Reply)
Hi,
Please advise me how to perform checking in perl on the following input below.
The output criteria will be
1. field 1 will begin as 913354744 for each as example
2. field 4 must be unique.
3. field 7 is showing dd/mm/yyyy, but it require checking if unixtime should covert to... (5 Replies)
hi all,
i am trying to append the output of a find command (for different paths)in an array as below...
my $res_array;
$i=0;
$dir="/orn/ops/regs";
foreach $block("am","xb"){
$bdir="$dir/$block";
$res_array=`find $bdir ! -user mainuser -printf \"\%u \%h\\n\"`;
$i++;
}
i... (6 Replies)
Hello All,
I have been working on a great script to remotely gather server info and store it in a .txt that can be imported to .xls
I have been reading the hostnames that are in the /.shh/known_hosts file so I don't have to mess with passing a password - via ssh (not easy to do , by the... (1 Reply)
I'm in need of help for a project that I'm working on. I believe Perl would be the best way of handling the string manipulation, however, I've barely used perl, and I'm used to BASH scripting. Another note is, this project is in a Windows environment, so I can use Perl, but I do not have shell... (1 Reply)
Hello,
I have mysql binary file which logs all the database queries and i to insert all queries log in to database. First i coverted binary file to text file. and start playing with it. Text file contains following queries, some samples are,
SET INSERT_ID=1;
INSERT INTO test... (0 Replies)
I don't know if this is a big issue or not, but I'm having difficulties. I apoligize for the upcoming essay :o.
I'm writing a script, similar to a paint program that edits images, but in the form of ANSI block characters. The program so far is working. I managed to save the image into a file,... (14 Replies)
I am a UNIX newbee . I have been doing some reading lately but really need help with an an urgent requirement.After almost two days of googling I end up with 0 luck. Hopefully a guru on here will be able to help me out. Here is my requirement:
I have 20 files in a directory with detail records... (6 Replies)
Hi,
I have a file about 100 lines. Each line is about 2000 characters (each line is fixed length). In middle of each line is following constant value
0000040029892586
Now, I want to go through each line and increment by 1.
So, line 1 will have 586
line 2 will have 587, line 3 will have... (4 Replies)
Discussion started by: jakSun8
4 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)