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Shift array element


 
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# 1  
Old 05-22-2009
Shift array element

I want to delete and 0th element of array in shell scrpit and also shift all others to one level up.
# 2  
Old 05-22-2009
"unset" is what you are looking for.
Code:
unset arr[3]

My code sample follows:

Code:
#!/bin/bash

example[1]="one"
example[2]="two"
example[3]="three"
example[4]="four"
example[5]="five"

echo "A simple list, iterate over it to show elements"

for i in "${example[@]}"; do
        echo $i;
done;

echo "Unsetting 3rd element of array with: unset example[3]"
unset example[3]

echo
echo "Iterate over the modified list."

for i in "${example[@]}"; do
        echo $i;
done;

And then I tested it

Code:
-bash-3.00$ ./test.sh
A simple list, iterate over it to show elements
one
two
three
four
five
Unsetting 3rd element of array with: unset example[3]

Iterate over the modified list.
one
two
four
five

# 3  
Old 05-22-2009
Quote:
Originally Posted by darshakraut
I want to delete and 0th element of array in shell scrpit and also shift all others to one level up.

Code:
array=( a b c d e f g h i j k l ) ## define array

unset array[0]              ## remove element
array=( "${array[@]}" )     ## pack array

printf "%s\n" "${array[@]}" ## print array


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