You didn't specify what interface your script provides to allow other processes to access its functions. You're not even clear in which language your library uses. (bash or ksh?) Helping you use an unspecified interface is not really possible.

Update: Well, you could do

$ cat lib
function greet() {
   echo 'Hello World!'
}

$ bash --rcfile lib -i -c greet
Hello World!

$ perl -e'system(bash => ( "--rcfile" => "lib", -i, -c => "greet" ))'
Hello World!
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Sorry, I am a forum novice. Thanks your example did the trick. I wanted to make use of existing functions in a bash script. The particular function renamed for backup purposes existing log files. Below is the corrected problem area:

my $sysTestLib="$HOME/bin/test/library/libsystemtest.ksh";  # Systest 
+libraries
my $libFunc;            # Systest Libray function variable

if (-e $RESULTS) {
   $libFunc="libHandleFileName -f $RESULTS";    # System Test Library 
+Function
   $renameRes = system(bash => ("--rcfile" => "$sysTestLib", -i, -c =>
+ "$libFunc" ) );
}
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sub text_to_sh_lit {
   my ($s) = @_;
   $s =~ s/'/'\\''/g;
   return "'$s'";
}

my $cmd = (
   join ' ',
   map text_to_sh_lit($_),
   libHandleFileName => (
      -f => $RESULTS,
   )
);

$renameRes = system(
   bash => (
      "--rcfile" => $sysTestLib,
      -i,
      -c => $cmd,
   )
);
[download]

Really? That's nice to know. Thank you for sharing.

What have you tried? What documents have you read? Where's the code you have written and how did it fail?

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