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Shift command help

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# 1  
Old 09-22-2018
Shift command help
Code:
#!/bin/bash

hostname=$1; shift

for hostname in $1

do

ping $hostname

done

I want to run the above script as hostname.sh yahoo.com google.com cnn.com. I want to shift each hostname to $1. How can do that with above code as currently it's not shifting.
# 2  
Old 09-22-2018
No shifts necessary...
Code:
for hostname in "$@"
do	ping "$hostname"
done

This User Gave Thanks to Don Cragun For This Post:
scj2012
# 3  
Old 09-22-2018
Quote:
Originally Posted by Don Cragun
No shifts necessary...
Code:
for hostname in "$@"
do	ping "$hostname"
done

Thank you! But do you know how to do it with shift?
# 4  
Old 09-22-2018
Yes. Why do you need to complicate things by using shift?

Is this a homework assignment?
This User Gave Thanks to Don Cragun For This Post:
Neo
# 5  
Old 09-22-2018
Quote:
Originally Posted by Don Cragun
Yes. Why do you need to complicate things by using shift?

Is this a homework assignment?
No, just trying to make so I understand the shift command. I know I'm going to need it at some point.
# 6  
Old 09-23-2018
You know that $# tells you how many positional parameters are present. Executing shift will decrement the value of $# as a side effect.

Can you come up with a while loop conditioned on the value of $# with the code in the loop using "$1" and the last command in your loop being a shift?
This User Gave Thanks to Don Cragun For This Post:
Neo
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