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Perl will work just fine in a bash script.

Dont know what code is inside fun but you cant dereference a void*...besides a[i] is a void* not void** so definition of fun needs to change to "void fun(void *b) {...}"

add the -i option for case insensitive. or change the pattern [Hh].

Comm can output lines that are common to both files, but from your initial post you suggest that you only have one file to work with and comm won't help with that.

Given that your file is already...

sed 's/.*\[\([a-zA-Z0-9_]*\).*/\1/'

wait() waits for children to die. If they're not supposed to die, don't wait() at all.

The most obvious way would be a pipe... The child reads from the read end of the pipe, but when there's nothing to be read, that will cause it to wait. The parent writes when it wants to wake the...

As an aside, that's not a particularly good method for hashing an integer. It means integers n, n+1, n+2, etc will all end up in a row in the table, which will make searching for empty slots slow if...

It depends on how you want to use the int output of the hash function...is it to be used as an index into the array...in which case you can add up the ascii values of each of the individual...

echo 'Brad Robins "worker in FGD" LA "id:3476543774/638957685" alternative::"id:7567756/38584896"'|awk -F\" '{for(i=1;i<=NF;i++) if($i ~ /^id:/) print $i}'

while IFS=\" read user id town
do
echo "$id"
done < file

echo 'Jennifer Jones (student) "id:376765748587/7465674775" NewYork'|sed 's/.*"\([^"]*\)".*/\1/g'

echo 'Jennifer Jones (student) "id:376765748587/7465674775" NewYork' | awk -F\" '{print $2}'

echo "Jennifer Jones (student) \"id:376765748587/7465674775\" NewYork"|cut -d"\"" -f2

awk '/www/' filename

@OP: Why the parentheses?
stringtocheck=$line
The intermediate variable is not necessary:
while read line;
do
if [[ "$line" == *www.* ]]; then
#do things
fi
done < ./tempfile


or,...

Try:
while read line
do
if [ $(echo "${line}"|grep -c "www\..*") -ne 0 ]
then
//do things
fi

done < './tempfile'

try to put variable in double quotes -

stringtocheck=("$line")
echo "$stringtocheck"

Is the filename really relevant here? The URL didn't contain one, so wget saved a default name. For URL's with no filename, you could've told it -O index.html and then you'd know. For URL's with a...

mkdir /absolute/path/to/folder

it can also be left out the left hand side in bash's [[ :cool:


[[ $day = [[:alpha:]]* ]]

Yes, but exactly how depends on a few things. Is this string a part of a record contained in a file, and thus you want to replace all of these strings with just the last two chracters? Or, is this...

I would also have a preference for case since it is more portable. Since you are using bash you could also use:
if [[ "$day" == [A-Za-z]* ]]; then

--
@jlliagre: in light of our other interesting...

I would use case instead of if:
case "$day" in
([A-Za-z]*) echo ok ;;
(*) echo ko ;;
esac

awk '{ A[$1 " " $2] += $3 } END { for(X in A) print X, A[X] }' filename