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Full Discussion: cron execution
Operating Systems Solaris cron execution Post 302141727 by bakunin on Monday 22nd of October 2007 05:30:50 AM
Old 10-22-2007
First I'd like to say that raman1605 is correct: maybe your and the cronjobs rights are different and that the script is able to read/write to/from some logfiles doesn't mean the cron-job is able to do the same. That doesn't *need* to be a problem, but it could very well be one.

Quote:
Originally Posted by rameek20
Is there anything more that cron is supposed to have in the PATH to set?
I have no idea. The best thing you can do to analyze that is to take a snapshot of your own environment by issuing

env > env.file

and look what stands there. Then put into your script everything from there that you think might be necessary, try it again, if it fails add some more, etc., until your script is running.

It is a good idea, though, to create a "standard-function" which sets your scripts environment. You can use this funtion over and over again for all your scripts and if something is missing there you could modify it and all your scripts will benefit. This could look like:

Code:
# save this as /usr/local/lib/ksh/stdenv

if [ -z "$NEVER_USE_THIS_VAR" ] ; then
     unset ENV
     typeset -x PATH='/bin:/usr/bin:/usr/local/bin'
     typeset -x FPATH='/usr/local/lib/ksh'
     # ... many more declarations, whatever you need ....

     NEVER_USE_THIS_VAR="kilroy_was_here"
fi

Now your scripts would start like:

Code:
#! /bin/ksh

. /usr/local/lib/ksh/stdenv         # set the standard environment

typeset -i somevar=0                # set some local variables

# ... etc., etc.

exit 0

bakunin
 

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LEARN ABOUT OPENSOLARIS

env

env(1)								   User Commands							    env(1)

NAME

       env - set environment for command invocation

SYNOPSIS

       /usr/bin/env [-i | -] [name=value]... [utility [arg... ]]

       /usr/xpg4/bin/env [-i | -] [name=value]...
	    [utility [arg... ]]

DESCRIPTION

       The  env utility obtains the current environment, modifies it according to its arguments, then invokes the utility named by the utility op-
       erand with the modified environment.

       Optional arguments are passed to utility. If no utility operand is specified, the resulting environment is written to the standard  output,
       with one name=value pair per line.

   /usr/bin
       If env executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).

   /usr/xpg4/bin
       If env executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).

OPTIONS

       The following options are supported:

       -i | -	     Ignores  the  environment that would otherwise be inherited from the current shell.  Restricts the environment for utility to
		     that specified by the arguments.

OPERANDS

       The following operands are supported:

       name=value     Arguments of the form name=value modify the execution environment, and are placed  into  the  inherited  environment  before
		      utility is invoked.

       utility	      The  name of the utility to be invoked.  If utility names any of the special shell built-in utilities, the results are unde-
		      fined.

       arg	      A string to pass as an argument for the invoked utility.

EXAMPLES

       Example 1 Invoking utilities with new PATH values

       The following utility:

	 example% env -i PATH=/mybin mygrep xyz myfile

       invokes the utility mygrep with a new PATH value as the only entry in its environment. In this case, PATH is used to locate  mygrep,  which
       then must reside in /mybin.

ENVIRONMENT VARIABLES

       See  environ(5)	for  descriptions of the following environment variables that affect the execution of env: LANG, LC_ALL, LC_CTYPE, LC_MES-
       SAGES, and NLSPATH.

       PATH    Determine the location of the utility. If PATH is specified as a name=value operand to env, the value given shall be  used  in  the
	       search for utility.

EXIT STATUS

       If  utility  is invoked, the exit status of env is the exit status of utility. Otherwise, the env utility returns one of the following exit
       values:

       0	 Successful completion.

       1-125	 An error occurred.

       126	 utility was found but could not be invoked.

       127	 utility could not be found.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

   /usr/bin
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), standards(5)

SunOS 5.11							    2 Jan 2002								    env(1)
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