I am learning shell sripting and got stuck. here is the code #!/bin/bash
a=0
myarray[$a]=$1
echo $myarray[$a]
((a+=1))
echo $a
Output:
#./varcheck sa
sa[0]
1
somebody please tell me why the name of array is getting replaced with argument that I want to assign to 0th index of array.
echo "${myarray[$a]}"
is how you output an array member. Alternatively
echo "${myarray[a]}"
since the index is guaranteed to be arithmetic context unless you're using associative arrays. Thus, you could actually remove a line:
a=0
myarray[a]=$1
echo "${myarray[a++]}" # Get element at zeroth index
echo $a # Get post-incremented expansion of a.