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Shell Programming and Scripting
Running a script from script (bash)
Post 302271113 by bobban on Tuesday 23rd of December 2008 10:02:23 PM
12-23-2008
Running a script from script (bash)
Hello
I am a UNIX noob, attempting to use Cygwin on Windows XP to build a program. I am trying to get a few scripts together that can automate some tasks and I have run into a problem.
Basically this is related to calling one script from another. I found this thread in my search but am too noob to know if it answers my problem or not, so I will explain here.
I am calling one script (say: myscript.sh) from my home directory (the script itself is in the cygwin/usr/local/bin directory). Now on one line of this script it calls another script that is on a different drive and folder (say: cygdrive/d/dev/project) and it is called winenv.set.sh.
Now within winenv.set.sh a number of environmental variables are set. But what I notice is that after calling 'myscript.sh' the environmental variables have not been set. I know it works properly if I change into that directory and run the file using: . winenv.set.sh. And that is the same line I am using in 'myscript.sh'.
If I run: bash -v myscript.sh I end up seeing the text of the winenv.set.sh file in the console.
Hopefully my explanation is clear but if not please let me know how I can clarify, and thank you for any help you can provide.
I am a UNIX noob, attempting to use Cygwin on Windows XP to build a program. I am trying to get a few scripts together that can automate some tasks and I have run into a problem.
Basically this is related to calling one script from another. I found this thread in my search but am too noob to know if it answers my problem or not, so I will explain here.
I am calling one script (say: myscript.sh) from my home directory (the script itself is in the cygwin/usr/local/bin directory). Now on one line of this script it calls another script that is on a different drive and folder (say: cygdrive/d/dev/project) and it is called winenv.set.sh.
Now within winenv.set.sh a number of environmental variables are set. But what I notice is that after calling 'myscript.sh' the environmental variables have not been set. I know it works properly if I change into that directory and run the file using: . winenv.set.sh. And that is the same line I am using in 'myscript.sh'.
If I run: bash -v myscript.sh I end up seeing the text of the winenv.set.sh file in the console.
Hopefully my explanation is clear but if not please let me know how I can clarify, and thank you for any help you can provide.
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shcomp
SHCOMP(1) User Environment Utilities SHCOMP(1) NAME
shcomp - compile a ksh93 shell script SYNOPSIS
shcomp [ options ] [infile] [outfile]] ORIGIN OF THIS MAN PAGE
This man page was written by Christophe Martin <Schplurtz@free.fr> for the Debian GNU/Linux system. It is based on "shcomp --man" output. DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh93 can read and execute with the same effect as the original script. Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly. If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to locale specific versions for internationalization. If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from standard input. OPTIONS
-D, --dictionary Generate a list of strings that need to be placed in a message catalog for internationalization. -n, --noexec Displays warning messages for obsolete or non-conforming constructs. -v, --verbose Displays input from infile onto standard error as it reads it. --man Displays this man page on standard error and exits. --help Shows a short help message and exits. EXIT STATUS
0 Successful completion. >0 An error occurred. DEBIAN WARNING
On a Debian GNU/Linux system, more than one package may provide ksh. the output of shcomp can only be used by ksh93. Any other ksh will be unable to run the compiled script. EXAMPLE
( echo '#! /bin/ksh93' ; shcomp myscript ) > myscript.bin && chmod 755 myscript.bin ./myscript.bin SEE ALSO
ksh(1) IMPLEMENTATION
version shcomp (AT&T Labs Research) 2003-03-02 author David Korn <dgk@research.att.com> copyright Copyright (c) 1982-2005 AT&T Corp. license http://www.opensource.org/licenses/cpl1.0.txt KSH93 Fri Jun 3 2005 SHCOMP(1)