Ping in linux script with case

Question

In Linux I use a script to ping a couple of addresses. Now I want that the user can do: bash Script 50-60 And that the script pings the addresses 192.168.100.50 - 192.168.100.60 I use xx-yy to do this and I tried but the part after the shift is wrong.

for i in $*;
do
case $* in
 "XX-YY" ) shift;
           ping -c 1 192.168.0.$1 - $i
done

Answer 1

Script:

#!/bin/bash
start=${1%-*}
end=${1#*-}
for ((i=start;i<=end;i++));do
    ping -c 1 192.168.0.$i
done

Usage:

bash path_to_the_Script 50-60

A little explanation:

I used bash parameter expansion to extract start and end from the input string 50-60 .

${1#*-} is the string after the first match of a - in $1

and

${1%-*} is the string before the last match (first match from right) of a - in $1

Answer 2

您可以尝试以下逻辑：ping 192.168.100。{50..60}