i have file that contains data as follows
1
2
3
now i need to assign them into three variables
a1=1
a2=2
a3=3
Everything should come under a loop. In reality i may have 10 values which has to be assigned to 10 variable. if i have 25 values ( lines) , each should be assigned into 25 variables ... if someone good at array variable or dynamic variable assignment , can you please suggest on this
Here is an example
$ cat test
1
2
3
Variables
$ i=1; while read xx; do export a"$i"=$xx; i=$((i+1)); done < test
$ echo $a1
1
$ echo $a2
2
$ echo $a3
3
Creating Array
$ i=1; while read xx; do a[$i]=$xx; i=$((i+1)); done < test
Accessing Array
$ for i in ${a[@]}; do echo $i; done
1
2
3
$ i=1; while [ ${#a
[*]} -ge $i ]; do echo ${a[$i]}; i=$((i+1)); done
1
2
3
it works.. You guys rocks !
If running bash, check its man page for the mapfile / readarray command.