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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 DEBIAN

surfraw-update-path

SURFRAW-UPDATE-PATH(1)					User Contributed Perl Documentation				    SURFRAW-UPDATE-PATH(1)

NAME

       surfraw-update-path - updates PATH in shell config files

SYNOPSIS

       surfraw-update-path [-add] [-remove] [-check] [-sys] [-all] [-help] [-shell=SHELL]

DESCRIPTION

       surfraw-update-path adds the surfraw elvi directory (/usr/lib/surfraw) to your PATH in your shell's config file.

       Currently it supports bash, sh, csh, tcsh, ash, dash, ksh, pdksh, zsh, rc, and es

       Don't forget to login again or source your login files for it to take effect.

OPTIONS

       -check
	   Checks to see if the surfraw config code is present.  This is the default.

       -add
	   Adds the surfraw config code.

       -remove
	   Removes the surfraw config code

       -sys
	   Updates the system-wide shell config instead of the user.  Must be done as root.

       -shell=SHELL
	   Selects the shell to configure. Defaults to the value of the $SHELL environment variable.

	   Currently supported shells are:

	   sh, ash, bash, dash, csh, tcsh, ksh, pdksh, zsh, rc, and es.

       -all
	   Attempts to configure the startup files for all known shells

       -help
	   Gives a usage message

RETURN VALUE

       -check returns 0 if the surfraw code is present in the file, 1 if it is not found, or 2 on error.

       All other options return 0 on success, or 2 on error.

ENVIRONMENT

       SHELL
	   Used to determine which shell to configure, if -shell is not given.

       HOME
	   Used to find users config files.

       ENV Used by posix-compliant shells to specify a startup rc file.

       ZDOTDIR
	   Used to find user config files for zsh. If not set, defaults to HOME.

SEE ALSO

       surfraw(1), sh(1), ash(1), bash(1), dash(1), csh(1), tcsh(1), ksh(1), pdksh(1), zsh(1), rc(1), es(1)

AUTHOR

       Ian Beckwith <ianb@erislabs.net>

perl v5.12.4							    2011-07-12						    SURFRAW-UPDATE-PATH(1)
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