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Top Forums Shell Programming and Scripting Arguments in variable vs direct string Post 302985488 by break_da_funk on Thursday 10th of November 2016 07:07:23 AM
Old 11-10-2016
Quote:
Originally Posted by Scrutinizer
That is double interpretation. It is equivalent to
Code:
eval /.arguments_count.sh "$my_args"

Which has the same security concerns unless you are in control of the input..
Thank You. Eval also solves the problem.

Quote:

----

Hi Bakunin, this would offer no different result, since the since the unquoted variable expansion of my_args would still be subjected to field splitting into 7 arguments:

Code:
$ printf "%s\n" $my_args
a
b
c
\'d
e\'
f
g


Last edited by RudiC; 11-10-2016 at 08:22 AM..
 

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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
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