bash
This demonstrates various operations on a Bash associative array (dictionary), including accessing, retrieving, and manipulating key-value pairs.
declare -A sounds sounds["dog"]="woof" echo "${sounds[dog]}" # Dog's sound echo "${sounds[@]}" # All values echo "${!sounds[@]}" # All keys echo "${#sounds[@]}" # Number of elements unset sounds[dog] # Delete dog
bash internaldata manipulationsarray manipulationsassociative array (dictionary)
bash
This demonstrates various operations on an array in Bash, including accessing elements, counting elements, slicing, and listing indices.
echo "${Fruits[0]}" # Element #0 echo "${Fruits[-1]}" # Last element echo "${Fruits[@]}" # All elements, space-separated echo "${#Fruits[@]}" # Number of elements echo "${#Fruits}" # String length of the 1st element echo "${#Fruits[3]}" # String length of the Nth element echo "${Fruits[@]:3:2}" # Range (from position 3, length 2) echo "${!Fruits[@]}" # Keys of all elements, space-separated
bash internaldata manipulationsarray manipulationsarray operations