> ## Documentation Index
> Fetch the complete documentation index at: https://notes.kodekloud.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Remove
> Learn to manage Bash arrays by removing specific elements and clearing all elements in one command.
In this lesson, you’ll learn two key operations for managing Bash arrays:
1. Removing a specific element by its index
2. Clearing all elements in one command
## Removing a Specific Element by Index
To delete a single entry in a Bash array, use `unset` with the array name and the target index:
```bash theme={null}
#!/usr/bin/env bash
declare -a servers=("server1" "server2" "server3")
unset 'servers[1]'
echo "Remaining elements: ${servers[@]}"
```
Running this script produces:
```bash theme={null}
$ ./removing.sh
server1 server3
```
Bash does not reindex arrays after removal. The original indices remain, leaving gaps in the sequence.
To view both values and their indices after deletion:
```bash theme={null}
#!/usr/bin/env bash
declare -a servers=("server1" "server2" "server3")
unset 'servers[1]'
echo "Values : ${servers[@]}"
echo "Indices: ${!servers[@]}"
```
```bash theme={null}
$ ./removing_indices.sh
Values : server1 server3
Indices: 0 2
```
## Clearing All Elements
If you need to empty an array completely, omit the brackets when using `unset`:
```bash theme={null}
#!/usr/bin/env bash
declare -a servers=("server1" "server2" "server3")
unset servers
echo "After clearing: ${servers[@]}"
```
```bash theme={null}
$ ./removing_all.sh
```
No output appears because the array has been removed.
Using `unset array` deletes the entire variable. You must redeclare it before adding new elements.
## Summary of Removal Operations
| Operation | Command Usage | Result |
| ------------------ | ---------------------- | ------------------------------------- |
| Remove by index | `unset 'array[index]'` | Deletes the specified element only |
| Clear entire array | `unset array` | Removes all elements and the variable |
## Links and References
* [Bash Array Basics](https://www.gnu.org/software/bash/manual/html_node/Arrays.html)
* [Shell Parameter Expansion](https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html)
* [Bash Scripting Guide](https://tldp.org/LDP/abs/html/)