what's going on with this dash '-' thing?
I was trying to export the python environment requirements and this is what I intended to do:
conda list -e > requirements.txt
However I mistakendly typed this instead:
conda list -e -> requirements.txt
It still works but the file is having fewer lines in the content. I want to know what exactly happend. I searched but couldn't find an explaination on the - in this case. Thanks!
linux io-redirection arguments output dash
asked 4 hours ago
user3768495user3768495
1473
add a comment |
I was trying to export the python environment requirements and this is what I intended to do:
conda list -e > requirements.txt
However I mistakendly typed this instead:
conda list -e -> requirements.txt
It still works but the file is having fewer lines in the content. I want to know what exactly happend. I searched but couldn't find an explaination on the - in this case. Thanks!
linux io-redirection arguments output dash
asked 4 hours ago
user3768495user3768495
1473
add a comment |
I was trying to export the python environment requirements and this is what I intended to do:
conda list -e > requirements.txt
However I mistakendly typed this instead:
conda list -e -> requirements.txt
It still works but the file is having fewer lines in the content. I want to know what exactly happend. I searched but couldn't find an explaination on the - in this case. Thanks!
linux io-redirection arguments output dash
asked 4 hours ago
user3768495user3768495
1473
I was trying to export the python environment requirements and this is what I intended to do:
conda list -e > requirements.txt
However I mistakendly typed this instead:
conda list -e -> requirements.txt
It still works but the file is having fewer lines in the content. I want to know what exactly happend. I searched but couldn't find an explaination on the - in this case. Thanks!
linux io-redirection arguments output dash
linux io-redirection arguments output dash
asked 4 hours ago
user3768495user3768495
1473
asked 4 hours ago
user3768495user3768495
1473
asked 4 hours ago
user3768495user3768495
1473
asked 4 hours ago
user3768495user3768495
1473
asked 4 hours ago
user3768495user3768495
1473
1473
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The -e option doesn't take any argument after it, so the - is just a regular argument to list. The first and only positional argument conda list has is a regular expression, which causes it to
List only packages matching this regular expression.
In your case, it will have listed only packages matching - (so, containing a hyphen in their name). That output was then redirected into requirements.txt as you intended. It will be shorter than conda list -e's output because there are some non-matching packages that aren't included.
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
add a comment |
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
});
}
});
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%2f498034%2fwhats-going-on-with-this-dash-thing%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The -e option doesn't take any argument after it, so the - is just a regular argument to list. The first and only positional argument conda list has is a regular expression, which causes it to
List only packages matching this regular expression.
In your case, it will have listed only packages matching - (so, containing a hyphen in their name). That output was then redirected into requirements.txt as you intended. It will be shorter than conda list -e's output because there are some non-matching packages that aren't included.
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
add a comment |
The -e option doesn't take any argument after it, so the - is just a regular argument to list. The first and only positional argument conda list has is a regular expression, which causes it to
List only packages matching this regular expression.
In your case, it will have listed only packages matching - (so, containing a hyphen in their name). That output was then redirected into requirements.txt as you intended. It will be shorter than conda list -e's output because there are some non-matching packages that aren't included.
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
add a comment |
The -e option doesn't take any argument after it, so the - is just a regular argument to list. The first and only positional argument conda list has is a regular expression, which causes it to
List only packages matching this regular expression.
In your case, it will have listed only packages matching - (so, containing a hyphen in their name). That output was then redirected into requirements.txt as you intended. It will be shorter than conda list -e's output because there are some non-matching packages that aren't included.
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
The -e option doesn't take any argument after it, so the - is just a regular argument to list. The first and only positional argument conda list has is a regular expression, which causes it to
List only packages matching this regular expression.
In your case, it will have listed only packages matching - (so, containing a hyphen in their name). That output was then redirected into requirements.txt as you intended. It will be shorter than conda list -e's output because there are some non-matching packages that aren't included.
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
answered 4 hours ago
Michael HomerMichael Homer
47.6k8124163
47.6k8124163
add a comment |
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.
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%2f498034%2fwhats-going-on-with-this-dash-thing%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
