BASH
====
for file use "if [ -f ..."
for dir use "if [ -d ..."
example 1
---------
#! /bin/bash
if [ -f /etc/sysconfig/httpd ]; then
./etc/sysconfig/httpd
fi
example 2
---------
#! /bin/bash
if [ -d /etc/sysconfig ]
then
ls /etc/sysconfig
fi
example 3
---------
#! /bin/bash
if test -f /etc/sysconfig/httpd
then
./etc/sysconfig/httpd
fi