07-13-2010
There are several problems , but the error messages and the shell trace should be in unix mail for the user who owns the cron.
1) The top program expects a terminal and fails when run from cron if $TERM is not set.
Set $TERM in the script to something suitable.
When it is working, the output from "top" will include screen control characters and may need some work to make it readable.
I too don't have the commands to "top" which you are using. Most versions of "top" have a switch to make top only do one iteration then exit.
2) The file "topcommand.log" will be created in the default root directory for cron. Specify the full hierarchial directory name when referring to a file in a cron or issue a "cd" to the appropriate directory.
3) The file "testfile.out" is not written during this script. Though it has a full path name (which is good), does it exist?
4) The "-x" switch to ksh means that the shell trace will appear in unix mail for the user owning the cron. This might be useful for testing, but is unsuitable for a production script.
5) You may need to use "ux2dos" to convert the file format before "uuencode".
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LEARN ABOUT FREEBSD
atf-sh
ATF-SH(1) BSD General Commands Manual ATF-SH(1)
NAME
atf-sh [-s shell] -- interpreter for shell-based test programs
SYNOPSIS
atf-sh script
DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library.
atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter-
preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not
use any non-standard extensions.
The following options are available:
-s shell Specifies the shell to use instead of the value provided by ATF_SHELL.
ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes.
ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes.
ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a
specific interpreter.
EXAMPLES
Scripts using atf-sh(3) should start with:
#! /usr/bin/env atf-sh
Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode
the path to atf-sh in the script and then use the -s option afterwards as a single parameter:
#! /path/to/bin/atf-sh -s/bin/bash
ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts.
SEE ALSO
atf-sh(3)
BSD
September 27, 2014 BSD