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can anyone tell me what exactly do the command nc -lp ${L#* } which L=$1
any help would be appreciated!!!

thanks for your reply...it's only a book exercise and it's just for practice.it's not a homework... i am pretty new shell scripting ...
thanks again

thanks for your reply..but i asked something else...
my code is:
if [ $# -eq 1 ]
then
echo "give the parameter"
exit 1
fi

for i in *
do
grep "$1" $i
if [ $? -eq...

i want to make a bash script that searches a specific pattern in files through all subdirectories beneath the current directory..without using the command grep-R
but only the command grep..
...

i am pretty new shell scripting,so i need your help..i want to create a bash script that search for a specific pattern in a file, such as a word,beneath current directory. Also,it is important to...