Sponsored Content
Top Forums UNIX for Dummies Questions & Answers difference between source, exec and ./script Post 1679 by 98_1LE on Friday 23rd of March 2001 09:18:52 AM
Old 03-23-2001
What is the difference between sourcing a script, running it or execing it?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Difference between xargs and exec

Hi, I have tried both the options in small dummy scripts, but somehow i can't differentiate between the two. find . -name H* -exec ls -l {} \; find . -name H* | xargs ls -l Both work the ditto way. Any help is appreciated. (19 Replies)
Discussion started by: vibhor_agarwali
19 Replies

2. Shell Programming and Scripting

using -exec in a script

I am using a third party job management program called Autosys. the command to load a jil into the autosys database is jil < somefilename.jil I have a directory and it in are a lot of jils. rather than type jil < somefilename.jil for every file I would like to script something do do it. if cd... (2 Replies)
Discussion started by: jayjabour
2 Replies

3. Shell Programming and Scripting

bash shell: 'exec', 'eval', 'source' - looking for help to understand

Hi, experts. Whould anybody clear explay me difference and usage of these 3 commands (particulary in bash) : exec eval source I've tryed to read the manual pages but did not get much. Also could not get something useful from Google search - just so much and so not exactly, that is... (3 Replies)
Discussion started by: alex_5161
3 Replies

4. Shell Programming and Scripting

-exec cmd in ksh script

Hi, I discovered the following single-line script works very well to cp a large number of files from a source directory to a destination directory while avoiding the "argument list too large" error: # cpmany - copy large number of files # Takes two parameters - source dir, destination dir... (14 Replies)
Discussion started by: Tanuka
14 Replies

5. Shell Programming and Scripting

exec script error

Hi, Gurus, my script code as following: #!/usr/bin/sh mkdir dir1 result=`echo $?` if ; then echo "completed" else echo "wrong" fi When I execute it with command sh filename. , it executed successfully. but, when I execute it with command . filename it throw out error: -bash:ELF :... (2 Replies)
Discussion started by: ken002
2 Replies

6. Programming

difference bewteen pipe, xargs, and exec

I have read several docs on these on the web and looked at examples. I can't figure out the difference. In some cases you use one or the other or you combine them. can someone help me understand this? (1 Reply)
Discussion started by: guessingo
1 Replies

7. Shell Programming and Scripting

Script Variables Inquiry, Values Okay in Standalone Exec, No-Show in Cron Exec

I have the following bash script lines in a file named test.sh. #!/bin/bash # # Write Date to cron.log # echo "Begin SSI Load $(date +%d%b%y_%T)" # # Get the latest rates file for processing. # d=$(ls -tr /rms/data/ssi | grep -v "processed" | tail -n 1) filename=$d export filename... (3 Replies)
Discussion started by: ginowms
3 Replies

8. Shell Programming and Scripting

Difference b/w xargs and "-exec" in Find

Hi, What is the difference between the following commands find . -type f -exec grep 'abc' {} \; and find . -type f | xargs grep 'abc' Appreciate your help. (2 Replies)
Discussion started by: bobbygsk
2 Replies

9. Shell Programming and Scripting

Use of exec command in a script

Guru's, I want to make a use of "exec" command in my script and want to check return code of executing script, but as you know exec command will terminate current processID and comeout and will trigger new one, i am unable to check return code of script and not able to run a scrpit after exec. ... (2 Replies)
Discussion started by: pawar.atul28
2 Replies

10. Shell Programming and Scripting

Difference: 'source file.sh' or './file.sh'

Dear all, I would like to know the difference in executing the shell script both ways? a.) source file.sh b.) ./file.sh I need to initialize some setup which is part of the file.sh. I realized that when I do the source file.sh the setup is all initlaized well. However, with the ./file.sh... (3 Replies)
Discussion started by: emily
3 Replies
platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME
platform::shell - System identification support code and utilities SYNOPSIS
package require platform::shell ?1.1.4? platform::shell::generic shell platform::shell::identify shell platform::shell::platform shell _________________________________________________________________ DESCRIPTION
The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell. This package allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only requirement is that the other shell (identified by its path), is actually executable on the current machine. While for most platform this means that the architecture of the interrogated shell is identical to the architecture of the running shell this is not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run 32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers. For applications like a code repository it is important to identify the architecture of the shell which will actually run the installed packages, versus the architecture of the shell running the repository software. COMMANDS
platform::shell::identify shell This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell. platform::shell::generic shell This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell. platform::shell::platform shell This command returns the contents of tcl_platform(platform) for the specified Tcl shell. KEYWORDS
operating system, cpu architecture, platform, architecture platform::shell 1.1.4 platform::shell(n)
All times are GMT -4. The time now is 01:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy