Appending a string into a value from an array

Question

Is there a way to append an Array element in bash? For Example:

$ declare -a MY_ARR=('Bob' 'Jim Jim' 'Dug Dug' 'Mark Mark')
$ echo "${MY_ARR[0]}"
Bob
$ MY_ARR[0]<< "bob"
$ echo "${MY_ARR[0]}"
Bob bob

I'm pretty sure that there is a relatively simple way of doing this in PHP but I can't seem to find a bash solution.

Just to clarify I want to add something to the current array element not overwrite it.

EDIT: I want to append a current Array ELEMENT not add another element to the array. It is the actual array ELEMENT contents that I want to edit.

Cyrus · Accepted Answer · 2014-12-04 08:48:27Z

1

declare -a MY_ARR=('Bob' 'Jim Jim' 'Dug Dug' 'Mark Mark')
MY_ARR[0]+=" bob"
echo "${MY_ARR[0]}"

Output:

Bob bob

answered Dec 4, 2014 at 8:48

Cyrus

90.2k15 gold badges112 silver badges173 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

RixsonL Over a year ago

Please see update to clarify I do not want to append the array it is the array element

Cyrus Over a year ago

This adds something to the first array element. Take a look at: declare -p MY_ARR

David C. Rankin Over a year ago

@RixsonL MY_ARR+=( " bob" ) would append to the array, Cyrus appended to the element 0.

RixsonL Over a year ago

Thank you for clarifying David. Yes that is correct Cyrus thank you for your help.

David C. Rankin · Accepted Answer · 2014-12-04 09:01:58Z

1

$ declare -a MY_ARR=('Bob' 'Jim Jim' 'Dug Dug' 'Mark Mark')
$ echo "${MY_ARR[0]}"
bob
$ MY_ARR[0]="${MY_ARR[0]} bob"
$ echo "${MY_ARR[0]}"
bob bob

answered Dec 4, 2014 at 9:01

David C. Rankin

85.1k6 gold badges67 silver badges95 bronze badges

2 Comments

David C. Rankin Over a year ago

Glad to help. Lot of smart bash folks here :)

RixsonL Over a year ago

It's quite scary sometimes :)

Collectives™ on Stack Overflow

Appending a string into a value from an array

2 Answers 2

4 Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related