Sponsored Content
Top Forums Shell Programming and Scripting Performance Issue - Shell Script Post 302978252 by balajesuri on Thursday 28th of July 2016 06:06:24 AM
Old 07-28-2016
Code:
#! /usr/bin/perl -w
use strict;

my $line = "";
my @elements = ();
open (FH, "< af5_nosr1.int");
while ($line = <FH>) {
    chomp($line);
    @elements = split(/,/, $line);
    my ($seq, $i) = (1, 2);
    for($i = 2; $i <= $#elements; $i += 2) {
        print "$elements[0]|$elements[1]|$seq|$elements[$i]|$elements[$i+1]\n";
        $seq++;
    }
}
close(FH);

 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Performance of a shell script

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)
Discussion started by: namishtiwari
2 Replies

2. Shell Programming and Scripting

Performance issue with awk script.

Hi, The below awk script is taking about 1 hour to fetch just 11 records(columns). There are about 48000 records. The script file name is take_first_uniq.sh #!/bin/ksh if then while read line do first=`echo $line | awk -F"|" '{print $1$2$3}'` while read line2 do... (4 Replies)
Discussion started by: RRVARMA
4 Replies

3. Shell Programming and Scripting

Performance issue with ftp script.

Hi All, I have written a script to FTP files from local server to remote server. When i try it for few number of files the scripts runs successfully. But the same script when i run for 200-300 files it gives me performanace issue by aborting the connection. Please help me out to improve the... (7 Replies)
Discussion started by: Shiv@jad
7 Replies

4. UNIX for Advanced & Expert Users

FTP-Shell Script-Performance issue

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)
Discussion started by: RSC1985
3 Replies

5. Shell Programming and Scripting

Improve the performance of a shell script

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)
Discussion started by: apsprabhu
10 Replies

6. Shell Programming and Scripting

Script performance issue

hi i have written a shell script which comapare a text file data with files within number of different directories. example. Text File: i have a file /u02/abc.txt which have almost 20000 file names Directories: i have a path /u03 which have some subdirectories like a,b,c which have almost... (2 Replies)
Discussion started by: malikshahid85
2 Replies

7. UNIX for Dummies Questions & Answers

awk script performance issue

Hello All, I have the below excerpt of code in my shell script and it taking long time to complete, though it prints the output quickly. Is there a way to make it come out once it finds the first instance as the file size of 4.7 GB it could be going through all lines of the data file to find for... (3 Replies)
Discussion started by: Ariean
3 Replies

8. Shell Programming and Scripting

Performance issue in shell script

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)
Discussion started by: ureddy
8 Replies

9. Shell Programming and Scripting

Linux shell programming performance issue

Hi All, can any one help me on this please. Replace sting in FILE1.txt with FILE2.txt. FILE1.txt record must have at least one state is repeated once.But need to replace only from second occurrence in record in FILE1.txt Condition: order of searching the records in FILE2.txt is impartent.... (8 Replies)
Discussion started by: ureddy
8 Replies

10. Shell Programming and Scripting

Performance problem in Shell Script

Hi, I am Shell script beginner. I wrote a shell programming that will take each line of a file1 and search for it in another file2 and give me the output of the lines that do not exist in the file2. I wrote it using do while nested loop but the problem here is its running for ever . Is there... (12 Replies)
Discussion started by: sakthisivi
12 Replies
SCRIPT(1)							   User Commands							 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-a] [-c command] [-e] [-f] [-q] [-t[=file]] [-V] [-h] [file] DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. Options: -a, --append Append the output to file or typescript, retaining the prior contents. -c, --command command Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves differently when its stdout is not a tty. -e, --return Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n. -f, --flush Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can super- vise real-time what is being done using `cat foo'. --force Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic link. -q, --quiet Be quiet. -t, --timing[=file] Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used to replay typescripts with realistic typing and output delays. -V, --version Output version information and exit. -h, --help Output help and exit. The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. Script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1). HISTORY
The script command appeared in 3.0BSD. BUGS
Script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. AVAILABILITY
The script command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux February 2011 util-linux
All times are GMT -4. The time now is 02:37 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy