Unable to have a local variable with the same name as a global read-only variable
0
#!/bin/bash
readonly x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
readonly-local-test.sh: line 6: local: x: readonly variable
2
2
When the variable is read-only this happens. However, if I remove the readonly restriction as below,
#!/bin/bash
x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
1
2
Why read only global variables can't be shadowed?
bash shell-script
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
#!/bin/bash
readonly x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
readonly-local-test.sh: line 6: local: x: readonly variable
2
2
When the variable is read-only this happens. However, if I remove the readonly restriction as below,
#!/bin/bash
x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
1
2
Why read only global variables can't be shadowed?
bash shell-script
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You just can't redefine thereadonlyvariables
– Inian
7 mins ago
add a comment |
0
0
0
#!/bin/bash
readonly x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
readonly-local-test.sh: line 6: local: x: readonly variable
2
2
When the variable is read-only this happens. However, if I remove the readonly restriction as below,
#!/bin/bash
x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
1
2
Why read only global variables can't be shadowed?
bash shell-script
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
#!/bin/bash
readonly x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
readonly-local-test.sh: line 6: local: x: readonly variable
2
2
When the variable is read-only this happens. However, if I remove the readonly restriction as below,
#!/bin/bash
x=2
function test {
local x=1
echo ${x}
}
test
echo $x
The result is,
1
2
Why read only global variables can't be shadowed?
bash shell-script
bash shell-script
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SnitchSnitch
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SnitchSnitch
1012
asked 12 mins ago
SnitchSnitch
1012
1012
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Snitch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You just can't redefine thereadonlyvariables
– Inian
7 mins ago
add a comment |
You just can't redefine thereadonlyvariables
– Inian
7 mins ago
You just can't redefine the
readonly variables– Inian
7 mins ago
You just can't redefine the
readonly variables– Inian
7 mins ago
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Snitch is a new contributor. Be nice, and check out our Code of Conduct.
draft saved
draft discarded
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%2f506009%2funable-to-have-a-local-variable-with-the-same-name-as-a-global-read-only-variabl%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Snitch is a new contributor. Be nice, and check out our Code of Conduct.
draft saved
draft discarded
Snitch is a new contributor. Be nice, and check out our Code of Conduct.
Snitch is a new contributor. Be nice, and check out our Code of Conduct.
Snitch is a new contributor. Be nice, and check out our Code of Conduct.
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.
draft saved
draft discarded
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%2f506009%2funable-to-have-a-local-variable-with-the-same-name-as-a-global-read-only-variabl%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
You just can't redefine the
readonlyvariables– Inian
7 mins ago