Sponsored Content
Homework and Emergencies Homework & Coursework Questions What are different ways of executing shell commands? Post 302569047 by jayan_jay on Saturday 29th of October 2011 07:36:09 AM
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

executing commands in child shell

I have to execute some commands after executing one command ( cleartool setview Tagname) Problem is that I write commands in script like this. echo "test1" cleartool setview tagname echo "test2" copy file1 file2 echo "test3" but when I execute script. Output --------- test1 If I... (1 Reply)
Discussion started by: udaykishore
1 Replies

2. Shell Programming and Scripting

Executing commands through shell variable

Hey there, I am trying to pass a command as argument to a function. The command shows up in $1. Now I want to execute this command, but if I do a $1 ./sample "bla/blaprintf: warning: ignoring excess arguments, starting with `bla/bla' The code is : #!/bin/ksh fn() { $1 } fn... (3 Replies)
Discussion started by: shriyer
3 Replies

3. Shell Programming and Scripting

Executing many commands at once

Hi, I want to run these two commands one after the other. awk 'BEGIN {OFS="\t"} {print $2}' sort -u rather than typing awk 'BEGIN {OFS="\t"} {print $2}' file1 > file2, then sort -u file2 > file3. Is it possible to run both commands on file1 then get output file3? Its kinda hard for... (5 Replies)
Discussion started by: kylle345
5 Replies

4. UNIX for Dummies Questions & Answers

Do mv and cp commands lock files in different ways

We have two processes, one which copies a control file into a folder and another which is polling this folder and reading the control files. Sometimes they clash and the reader fails because the copy is still happening. We have been told that we should change the copy to a move because the... (1 Reply)
Discussion started by: sbarnes
1 Replies

5. Shell Programming and Scripting

Executing commands

I need to execute a command to run my script several times with varying parameters perl ex.pl -b 130198 -e 130884 -c plot plot.txt 1_plot.txt perl ex.pl -b 1345 -e 1308 -c plot plot.txt 2_plot.txt perl ex.pl -b 1345567 -e 130898 -c plot plot.txt 3_plot.txt . . . 100's of excutions ... (2 Replies)
Discussion started by: Lucky Ali
2 Replies

6. UNIX for Dummies Questions & Answers

how to stay in remote shell after executing commands in ssh?

the ssh calling convention: ssh <server> If I put commands in the section, ssh will execute them immediately after logging in and return to local shell. I want to stay in the remote shell after executing these commands. How can I achieve this? Thanks for all. (1 Reply)
Discussion started by: hplonlien
1 Replies

7. Shell Programming and Scripting

Executing a shell script containing awk commands

Hi All, I am trying to execute a shell script containg awk commands. But unable to do so. Below is my script. Please help. The name of the script is scan.sh and I have tried executing it using the command sh scan.sh It is giving an error which reads like: awk:syntax error near line 7... (3 Replies)
Discussion started by: misb
3 Replies

8. Shell Programming and Scripting

Commands not executing after FTP in shell script

Hello In the shell script we have a FTP command like below ftp -n -v -q winftp.principal.com >/infa/datafiles/GRP/Scripts/ftp_from_infa_dvcn.log<<END_SCRIPT   quote USER $FTP_USER quote PASS $FTP_PASS ascii lcd $FTP_LOCALDIR cd $FTP_FLDR put $FTP_FILE   bye exit If i... (1 Reply)
Discussion started by: Pratik4891
1 Replies

9. Shell Programming and Scripting

Trouble executing piped shell commands in perl code

I am trying to execute a piped combination of shell commands inside a perl program. However, it is not working as desired. This is my program, i am trying to print only filenames from the output of ls -l $ cat list_test #!/usr/bin/perl -w use strict; my $count=0; my @list=`ls -l|awk... (4 Replies)
Discussion started by: sam05121988
4 Replies

10. Shell Programming and Scripting

Executing multiple ssh commands inside a shell simultaneously

I would like to execute a commands in four different servers through ssh at a single instance(simultaneously). Below are the details with examples, ssh user1@server1 "grep xxxx logs" ssh user1@server2 "grep xxxx logs" ssh user1@server3 "grep xxxx logs" Each statement will take some... (4 Replies)
Discussion started by: Amutha
4 Replies
Browser::Open(3pm)					User Contributed Perl Documentation					Browser::Open(3pm)

NAME
Browser::Open - open a browser in a given URL VERSION
version 0.03 SYNOPSIS
use Browser::Open qw( open_browser ); ### Try commands specific to the current Operating System my $ok = open_browser($url); # ! defined($ok): no recognized command found # $ok == 0: command found and executed # $ok != 0: command found, error while executing ### Try all known commands my $ok = open_browser($url, 1); DESCRIPTION
The functions optionaly exported by this module allows you to open URLs in the user browser. A set of known commands per OS-name is tested for presence, and the first one found is executed. With an optional parameter, all known commands are checked. The "open_browser" uses the "system()" function to execute the command. If you want more control, you can get the command with the "open_browser_cmd" or "open_browser_cmd_all" functions and then use whatever method you want to execute it. API
All functions are not exported by default. You must ask for them explicitly. open_browser my $ok = open_browser($url, $all); Find an appropriate command and executes it with your $url. If $all is false, the default, only commands that match the current OS will be tested. If true, all known commands will be tested. If no command was found, returns "undef". If a command is found, returns the exit code of the execution attempt, 0 for success. See the "system()" for more information about this exit code. If no $url is given, an exception will be thrown: "Missing required parameter $url". open_browser_cmd my $cmd = open_browser_cmd(); Returns the best command found to open a URL on your system. If no command was found, returns "undef". open_browser_cmd_all my $cmd = open_browser_cmd_all(); Returns the first command found to open a URL. If no command was found, returns "undef". AUTHOR
Pedro Melo, "<melo at cpan.org>" COPYRIGHT &; LICENSE Copyright 2009 Pedro Melo. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-03-09 Browser::Open(3pm)
All times are GMT -4. The time now is 05:54 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy