ARP and Bonjour to build list of user devices Post: 302993622

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Top Forums UNIX for Beginners Questions & Answers ARP and Bonjour to build list of user devices Post 302993622 by drysdalk on Sunday 12th of March 2017 10:22:11 AM

03-12-2017

Registered User

Hi,

In general, if a command works at the shell prompt, it should work if that same command is put in a script that is run by that same shell. What might be happening here perhaps is that paths when running via crontab might not be what you'd expect.

If you try in your script putting full absolute paths to all binaries and files, does it then work OK via a crontab entry ? That's probably the first thing to try, since if this approach is working for you at the command line, it should (generally speaking) work in a script as well.

Also make sure the shebang line at the top of your script matches the shell you expect to use to run the script (so #!/bin/bash for Bash, for instance), in case there is a difference between your own shell and the system default shell, or the shell the user is running as in cron.

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platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)