parallel links checker

linkschecker.sh

 set +ex
 
 if [ ! `which parallel` ]
 then
     echo "[-] Parallel isn't installed";
     exit 1
 fi
 
 my_ping() {
     link=$1
     ping -c 2 $link
 }
 
 export -f my_ping
 # We got a file of links to check
 if [ "$#" -eq 1 -a -e $1 ]
 then
     parallel -a $1 my_ping
 fi
 
 # We got links in the stdin
 if [ "$#" -eq 0 ]
 then
     v=$(cat /dev/stdin)
     parallel  my_ping ::: $v
 
 fi
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