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Full Discussion: comamnds running interactively, failed in script wrigint
Top Forums Shell Programming and Scripting comamnds running interactively, failed in script wrigint Post 302705887 by Corona688 on Tuesday 25th of September 2012 04:29:11 PM
Old 09-25-2012
Quote:
Originally Posted by nrjrasaxena
hi corona,
I did not understand. I have tested that piece of code. It just cd in the current working directory.
You've tested it in your home dir, by running it in a manner where $0 can be depended on.

Except, you can't depend on $0. When something that's not you runs it, especially automatic things like cron and so forth, you have no idea what your current dir, and the contents of $0, are going to be. It might start in / with a useless $0 like -bash or something. Or it might give an absolute path you weren't expecting. etc. I keep telling people not to do this but until it breaks down like this, they never understand why.

Try typing echo $0 into your shell for example. I get -bash. That's not any sort of directory.
 

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LEARN ABOUT DEBIAN

casparize

casparize(1)							  USER COMMANDS 						      casparize(1)

  NAME
      casparize - Set up caspar Makefile in a new directory

  SYNOPSIS
      casparize dir (/path/to/config/dir)

      casparize file (/path/to/config/dir/file)

  DESCRIPTION
      casparize  creates  a  new  configuration  working directory in your current working directory, sets up a Makefile for caspar(7) in this new
      directory, and optionally copies an original configuration file from its original system place to the newly  created  configuration  working
      directory.

  USAGE
      You typically use casparize when you already have created the root configuration working directory with its include directory and install.mk
      Caspar include file. By analysing your current working directory and the configuration directory path you give on  the  command  line,  cas-
      parize  can  deduce the contents of the Makefile in the newly created configuration working directory. It creates the new directory, creates
      the correct Makefile, and optionally copies the given configuration file in the new directory, ready for its first version commit.

  EXAMPLES
      A typical example:

	$ cd <svn>/etc
	$ casparize /etc/postfix/main.cf

      creates the directory <svn>/etc/postfix, creates <svn>/etc/postfix/Makefile including the proper content,  and  copies  /etc/postfix/main.cf
      into <svn>/etc/postfix/main.cf. You can now directly add and commit the new directory.

  BUGS
      Non known at this moment.

  AUTHOR
      Jeroen Hoppenbrouwers

  SEE ALSO
      caspar(7) The caspar homepage is at http://mdcc.cx/caspar/ .

  casparize 20120508						      8 mai 2012							casparize(1)
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