How do I access an item of an array in shell?
Clash Royale CLAN TAG#URR8PPP
up vote
1
down vote
favorite
I am using terminal with MacOSX.
I read this entry introducing about unix array. I tried to access an array as its way, but failed:
a=(1,2) && echo "$a[0]"
this is the output:
1,2
What I expected is 1.
What should I do?
bash shell array
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
add a comment |
up vote
1
down vote
favorite
I am using terminal with MacOSX.
I read this entry introducing about unix array. I tried to access an array as its way, but failed:
a=(1,2) && echo "$a[0]"
this is the output:
1,2
What I expected is 1.
What should I do?
bash shell array
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I am using terminal with MacOSX.
I read this entry introducing about unix array. I tried to access an array as its way, but failed:
a=(1,2) && echo "$a[0]"
this is the output:
1,2
What I expected is 1.
What should I do?
bash shell array
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
I am using terminal with MacOSX.
I read this entry introducing about unix array. I tried to access an array as its way, but failed:
a=(1,2) && echo "$a[0]"
this is the output:
1,2
What I expected is 1.
What should I do?
bash shell array
bash shell array
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
edited Nov 25 at 14:36
Rui F Ribeiro
38.3k1476127
38.3k1476127
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
asked Sep 24 '15 at 9:32
AGamePlayer
1,961102942
1,961102942
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
4
down vote
accepted
a=('1' '2') && echo "$a[0]" would be better like this.
In your version you only created a one element array which contains the value "1,2".
answered Sep 24 '15 at 9:37
netmonk
1,1741516
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
accepted
a=('1' '2') && echo "$a[0]" would be better like this.
In your version you only created a one element array which contains the value "1,2".
answered Sep 24 '15 at 9:37
netmonk
1,1741516
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
add a comment |
up vote
4
down vote
accepted
a=('1' '2') && echo "$a[0]" would be better like this.
In your version you only created a one element array which contains the value "1,2".
answered Sep 24 '15 at 9:37
netmonk
1,1741516
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
add a comment |
up vote
4
down vote
accepted
up vote
4
down vote
accepted
a=('1' '2') && echo "$a[0]" would be better like this.
In your version you only created a one element array which contains the value "1,2".
answered Sep 24 '15 at 9:37
netmonk
1,1741516
a=('1' '2') && echo "$a[0]" would be better like this.
In your version you only created a one element array which contains the value "1,2".
answered Sep 24 '15 at 9:37
netmonk
1,1741516
answered Sep 24 '15 at 9:37
netmonk
1,1741516
answered Sep 24 '15 at 9:37
netmonk
1,1741516
answered Sep 24 '15 at 9:37
netmonk
1,1741516
1,1741516
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
add a comment |
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
1
1
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
The quotes aren't necessary, just the whitespace (not a comma) to create two items instead of one.
– chepner
Sep 25 '15 at 13:42
add a comment |
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f231777%2fhow-do-i-access-an-item-of-an-array-in-shell%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown