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Top Forums UNIX for Dummies Questions & Answers Commands to run from shell script Post 302743261 by Yoda on Wednesday 12th of December 2012 11:25:02 AM
Old 12-12-2012
Always use absolute path if you are trying to run an executable that is not defined in PATH environment variable in BASH. So you should try:-
Code:
/path_of_isumid/isumid 98765432

Or add absolute path of executable isumid to PATH env variable.
Code:
export PATH="$PATH:/path_of_isumid"

I hope this helps.
 

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Env(3pm)						 Perl Programmers Reference Guide						  Env(3pm)

NAME
Env - perl module that imports environment variables as scalars or arrays SYNOPSIS
use Env; use Env qw(PATH HOME TERM); use Env qw($SHELL @LD_LIBRARY_PATH); DESCRIPTION
Perl maintains environment variables in a special hash named %ENV. For when this access method is inconvenient, the Perl module "Env" allows environment variables to be treated as scalar or array variables. The "Env::import()" function ties environment variables with suitable names to global Perl variables with the same names. By default it ties all existing environment variables ("keys %ENV") to scalars. If the "import" function receives arguments, it takes them to be a list of variables to tie; it's okay if they don't yet exist. The scalar type prefix '$' is inferred for any element of this list not prefixed by '$' or '@'. Arrays are implemented in terms of "split" and "join", using $Config::Config{path_sep} as the delimiter. After an environment variable is tied, merely use it like a normal variable. You may access its value @path = split(/:/, $PATH); print join(" ", @LD_LIBRARY_PATH), " "; or modify it $PATH .= ":."; push @LD_LIBRARY_PATH, $dir; however you'd like. Bear in mind, however, that each access to a tied array variable requires splitting the environment variable's string anew. The code: use Env qw(@PATH); push @PATH, '.'; is equivalent to: use Env qw(PATH); $PATH .= ":."; except that if $ENV{PATH} started out empty, the second approach leaves it with the (odd) value "":."", but the first approach leaves it with ""."". To remove a tied environment variable from the environment, assign it the undefined value undef $PATH; undef @LD_LIBRARY_PATH; LIMITATIONS
On VMS systems, arrays tied to environment variables are read-only. Attempting to change anything will cause a warning. AUTHOR
Chip Salzenberg <chip@fin.uucp> and Gregor N. Purdy <gregor@focusresearch.com> perl v5.18.2 2013-11-04 Env(3pm)
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