Bash Help

[eternaloptimist]

Hey all, bash noob here.

I have some scripts that work fine on their own. I now need to make them work from 1 file inside a loop and have the user choose which file to run.
./greet and ./shout work fine on their own i.e outside the loop.
I appreciate all the help I get, thanks.

#!/bin/bash
while true; do
        #how do i collect the args into an array so as to use then like $1 $2 $3 etc?
	read $@
	case "$*" in
		a)
			./greet.sh $1
			;;
		b)
			./shout  $1 $2
			;;
		*)
			echo 	"bye"
		        exit 1
	esac
done

 

[ginggs]

#!/bin/bash
while true; do
        #how do i collect the args into an array so as to use then like $1 $2 $3 etc?
	read $@
	case "$*" in
		a)
			./greet.sh $1
			;;
		b)
			./shout  $1 $2
			;;
		*)
			echo 	"bye"
		        exit 1
	esac
done

Can you give some examples of how you'd like to call the script, and what you expect the output to be?

 

[eternaloptimist]

Can you give some examples of how you'd like to call the script, and what you expect the output to be?

$ ./script
#enter infinite loop
a Sammy
#returns
"Hello Sammy!"
b Sammy Jane
#returns
"Sammy, Jane says hi!"
hhhhh
#exits the loop

I have 2 files, the first one has this
1st file ./greet
echo "Hello $1!"
2nd file ./shout.sh
echo "$1, $2 says hi!"

I want to call these files using either a or b from inside the loop.

 

[Necropolis]

Why not use something like Python?

I don't see the point of a Bash script if you aren't doing something OS related...

 

[rward]

You need to accept the 'a Sammy' input as a string and then parse it for the various pieces.

From a quick glance, what you have there looks basically correct:
Start loop
Read input
Process input(if given)
Go back to start loop

 

[Sinbad]

case $1 in

echo $2

echo $2 $3

 

[Nod]

#!/usr/bin/bash
while getopts a:b:h opt
do
  case $opt in
        a) ./greet.sh $OPTARG;;
        b) ./shout.sh $OPTARG;;
        h) echo "Help!";;
  esac
done

$ ./t.sh -a Jain -b "Tim Tom"
+ getopts a:b:h opt
+ case $opt in
+ ./greet.sh Jain
Hello Jain!
+ getopts a:b:h opt
+ case $opt in
+ ./shout.sh Tim Tom
Tim, Tom says hi!
+ getopts a:b:h opt

 

[rward]

Check 'read' here:
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_08_02.html

Loop
Read inputs
Parse inputs
Switch statement

Something like that

 

[eternaloptimist]

thanks for the help everyone, really appreciated! I got it to work by adding
read -r arg1 arg 2 arg3

 

[eternaloptimist]

Check 'read' here:
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_08_02.html

Loop
Read inputs
Parse inputs
Switch statement

Something like that

I really need to learn how to write pseudocode like that. thanks!