in string handling functions -- and we frequently need to refer to just the directory or just the file n... This allows us to use any of these fields that we need from within the loop. Here we are just using the ... time of its execution is a fatal error. So if we need to execute a program and the executable is not th... ht params
if [ $# -lt 1 ]; then
echo "whois : need user id's please"
return 1
fi
for loop
do
