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Shell Programming and Scripting

read n number of inputs

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# 8  
Old 07-27-2006
Code:
#!/usr/bin/ksh

read var

set -A vars $(echo $var)

echo Number of elements: ${#vars[*]}

echo Elements:
j=0
while [ ${j} -lt ${#vars[*]} ]
do
   echo ${vars[${j}]}
   (( j += 1 ))
done

# 9  
Old 07-27-2006
This is ksh:
Quote:
Originally Posted by Klashxx
Code:
i=1
while true
do
   read var
   [ "${var}." = "." ] && break; #NULL VAR->STOP INPUT
   VAR[${i}]=$var
   (( i += 1 ))
done

# to show

j=1
while [ ${j} -lt ${i} ]
do
   echo ${VAR[${j}]}
   (( j += 1 ))
done

# 10  
Old 07-27-2006
Klashxx,

every where { } are used is there any specific reason .. i tried the script with no {} i got error

line 1: var: command not found

can u explain me

--Chanakya
# 11  
Old 07-27-2006
I simulated your issue ,but i didn´t get the same result.
What shell are you using? Could you post what you tried?

Thx
# 12  
Old 07-27-2006
I think the reason for the error is that "{}" are mandatory for arrays but not for "normal" variables.
In assignments its OK:
Code:
VAR[${i}]=$var

But, here, you need the "{}":
Code:
# Right
echo ${VAR[${j}]}

# Wrong
echo $VAR[${j}]

Regards.
# 13  
Old 07-27-2006
Thanks Grial .. now i got it thanks a lot..

-Chanakya
# 14  
Old 07-27-2006
There is another method but in this method we need to answer y or n if we want to give more output.

echo "enter the inputs for the file"
answer=y
while [ "$answer" = "y" ]
do
read fname
echo "$fname">>filename
echo "Enter anymore y or n\c"
read anymore
case $anymore in
y*|Y*) answer=y ;;
n*|N*) answer=n ;;
*)answer=y ;;
esac;done
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