use warnings;
use strict;

open (EMPLOYEES,"employees.txt") or die "Tough: $!\n\n";
while ($line = <EMPLOYEES>) {
  chomp $line;
    ($name,$department, $salary) = split /\t/, $line;

print "n=$name\n"
print "d=$department\n"
print "s=$salary\n"

    next unless$name =~ /^Mr /;
    next unless$salary > 25000;
    next unless$department eq $ARGV[0];

    $name =~ s/Mr//;
    print"$name\n";
}
close (EMPLOYEES);
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The command line i used was ./employee HR. This is the whole script and there are no parameters at the start. These are the errors i am getting;

./employee.pl: line 1: use: command not found
./employee.pl: line 2: use: command not found
./employee.pl: line 5: syntax error near unexpected token `EMPLOYEES,"
+employees.txt"'
./employee.pl: line 5: `open (EMPLOYEES,"employees.txt") or die "Tough
+: $!\n\n";'
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Looks like shell error messages. Have you deleted the very first line of the script starting with #!? Then your shell tries to interpret the script, not perl.

with the first line added i get the following errors

l symbol "$line" requires explicit package name at ./employee.pl line 
+10.
Global symbol "$line" requires explicit package name at ./employee.pl 
+line 13.
Global symbol "$name" requires explicit package name at ./employee.pl 
+line 16.
Global symbol "$department" requires explicit package name at ./employ
+ee.pl line 16.
Global symbol "$salary" requires explicit package name at ./employee.p
+l line 16.
Global symbol "$line" requires explicit package name at ./employee.pl 
+line 16.
Global symbol "$name" requires explicit package name at ./employee.pl 
+line 18.
syntax error at ./employee.pl line 19, near "print"
Global symbol "$name" requires explicit package name at ./employee.pl 
+line 23.
Global symbol "$salary" requires explicit package name at ./employee.p
+l line 26.
Global symbol "$department" requires explicit package name at ./employ
+ee.pl line 29.
Global symbol "$name" requires explicit package name at ./employee.pl 
+line 32.
Global symbol "$name" requires explicit package name at ./employee.pl 
+line 34.
Execution of ./employee.pl aborted due to compilation errors.
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