Typically, one would use:
or try awk:
These two approaches only work if the lines are exactly the same, with no leading or trailing whilespace in one file, that is missing in the other...
--
Otherwise you could try this adaptation of the awk approach:
--
On Solaris use /usr/xpg4/bin/grep and /usr/xpg4/bin/awk
Last edited by Scrutinizer; 08-19-2015 at 01:53 PM..
Hiii,
I wrote a shell script for testing purpose.
I have to test around 200thousand entries with the script.When i am doing only for 6000 entries its taking almost 1hour.If i test the whole testingdata it will take huge amount of time.
I just want to know is it something dependent on the... (2 Replies)
I need help in awk please help immediatly.
This below function is taking lot of time
Please help me to fine tune it so that it runs faster.
The file count is around 3million records
# Process Body
processbody() {
#set -x
while read line
do
... (18 Replies)
Hi ,
I have included my script below, pls read thro this req. I want my script to run for every hour , the problem is I CANNOT USE CRONTAB which is prohibited inside the company. My script does what it is supposed to do (to determine the memory and then send a email if it crosses a certain... (2 Replies)
Hello All,
Request any one of Unix/Linux masters to clarify on the below.
How far it is feasible to open a new ftp connection for transferring each file when there are multiple files to be sent. I have developed shell script to send all files at single stretch but some how it doesnt suit to... (3 Replies)
HI frnds
I have one flat with data and am loading the data into oracle table. While loading , rejected records are captured in log file. Now I want to read the log file and get the all rejected records and the reason for the rejection.
I developed the script . its finding 5000 rejected... (7 Replies)
Hi,
I have to find out the run time for 40-45 different componets. These components writes in to a genreric log file in a single directory.
eg.
directory is LOG and the log file name format is generic_log_<process_id>_<date YY_MM_DD_HH_MM_SS>.log
i am taking the run time using the time... (3 Replies)
Hi Friends,
I wrote the below shell script to generate a report on alert messages recieved on a day. But i for processing around 4500 lines (alerts) the script is taking aorund 30 minutes to process.
Please help me to make it faster and improve the performace of the script. i would be very... (10 Replies)
I am currently trying out MKS Toolkit C Shell, and I've no problems with it until I try add directories to PATH that are located on a network drive.
When I do that, the shell performance slows down significantly and no longer runs fast. In fact, it takes seconds for something that should take... (1 Reply)
Hi All,
I am facing performance issue while rinning the LINUX shell script.
I have file1 and file 2. File one is the source file and file 2 is lookup file. Need to replace if the pattern is matching in file1 with file2.
The order of lookup file is important as if any match then exit... (8 Replies)
Hi,
I am beginner in shell scripting. I have written a script to parse file(s) having large number of lines each having multiple comma separated strings.
But it seems like script is very slow. It took more than 30mins to parse a file with size 120MB (523564 lines), below is the script code
... (4 Replies)
Discussion started by: imrandec85
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)