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Full Discussion: script/program in vi include $? or...
Top Forums UNIX for Dummies Questions & Answers script/program in vi include $? or... Post 302298902 by wabard on Wednesday 18th of March 2009 10:16:46 PM
Old 03-18-2009
Error
Step 1)

When writing scripts, you do not include the "$" at the beginning of the line, since in a shell, the "$" is actually the command prompt. The $ has a specific meaning within the shell program itself (it is used to reference variables).


Thus, in the example you supplied, vi a file called "myscript.sh". The script program would look similar to the following:

Code:
#!/bin/sh
echo "Today's date is `date`"

Note the quotes around the echo statement. This is due to the fact that you have an apostrophe within the desired phrase.

Step 2) Save the file and chmod +x myscript.sh
Step 3) ./myscript.sh

Code:
$ vi myscript.sh
$ chmod +x myscript.sh
$ ./myscript.sh



or

Step 3a) echo $PATH to see if the directory where "myscript.sh" is included, if not, include it using the following (for a Bourne/Korn shell or equivalent) into your login profile

PATH=$PATH:/newdirectorytoadd
export PATH

for csh users,

set path=($path /newdirectorytoadd)

or

setenv PATH ${PATH}:/newdirectorytoadd

(I'm not a csh power user, so double check this...)

Step 3b) at the command prompt, just execute the myscript.sh file


Code:
$ vi myscript.sh
$ chmod +x myscript.sh
$ PATH=$PATH:/this/is/the/directory
$ export PATH
$ myscript.sh


Don't think I can get much more explicit, I hope this helps.
Last edited by wabard; 03-19-2009 at 06:59 AM.. Reason: Spelling, I'm pendantic... :)
 

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LEARN ABOUT LINUX

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)
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