Regex search list of emails
So I have a long list of email and I want to search these based on just a few sections of the email string.
I want to try and search these emails more efficently so I want to match the start of the email. Is there a simple way to match the first character/first few characters, the @ and the following character and end of the email.
Here's an example search:
cal****@a**m
So then if I used a search on the following list it would only pull the top 2
callum@aol.com
callumsmith@aol.com
callumfrrg@test.com
someemail@test.com
regular-expression
edited yesterday
Olorin
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum 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 |
So I have a long list of email and I want to search these based on just a few sections of the email string.
I want to try and search these emails more efficently so I want to match the start of the email. Is there a simple way to match the first character/first few characters, the @ and the following character and end of the email.
Here's an example search:
cal****@a**m
So then if I used a search on the following list it would only pull the top 2
callum@aol.com
callumsmith@aol.com
callumfrrg@test.com
someemail@test.com
regular-expression
edited yesterday
Olorin
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum 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 |
So I have a long list of email and I want to search these based on just a few sections of the email string.
I want to try and search these emails more efficently so I want to match the start of the email. Is there a simple way to match the first character/first few characters, the @ and the following character and end of the email.
Here's an example search:
cal****@a**m
So then if I used a search on the following list it would only pull the top 2
callum@aol.com
callumsmith@aol.com
callumfrrg@test.com
someemail@test.com
regular-expression
edited yesterday
Olorin
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
So I have a long list of email and I want to search these based on just a few sections of the email string.
I want to try and search these emails more efficently so I want to match the start of the email. Is there a simple way to match the first character/first few characters, the @ and the following character and end of the email.
Here's an example search:
cal****@a**m
So then if I used a search on the following list it would only pull the top 2
callum@aol.com
callumsmith@aol.com
callumfrrg@test.com
someemail@test.com
regular-expression
regular-expression
edited yesterday
Olorin
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Olorin
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Olorin
3,0691416
edited yesterday
Olorin
3,0691416
edited yesterday
Olorin
3,0691416
3,0691416
asked yesterday
CallumCallum
1133
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
CallumCallum
1133
asked yesterday
CallumCallum
1133
1133
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Callum is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Callum 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 |
add a comment |
1 Answer
1
active
oldest
votes
With grep:
grep '^cal.*@a.*m$' input.txt
This matches lines beginning ^ with cal, followed by anything (.*), followed by @a, again followed by anything, with m at the end ($).
answered yesterday
OlorinOlorin
3,0691416
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
yesterday
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
});
}
});
Callum is a new contributor. Be nice, and check out our Code of Conduct.
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%2f497160%2fregex-search-list-of-emails%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
With grep:
grep '^cal.*@a.*m$' input.txt
This matches lines beginning ^ with cal, followed by anything (.*), followed by @a, again followed by anything, with m at the end ($).
answered yesterday
OlorinOlorin
3,0691416
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
yesterday
add a comment |
With grep:
grep '^cal.*@a.*m$' input.txt
This matches lines beginning ^ with cal, followed by anything (.*), followed by @a, again followed by anything, with m at the end ($).
answered yesterday
OlorinOlorin
3,0691416
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
yesterday
add a comment |
With grep:
grep '^cal.*@a.*m$' input.txt
This matches lines beginning ^ with cal, followed by anything (.*), followed by @a, again followed by anything, with m at the end ($).
answered yesterday
OlorinOlorin
3,0691416
With grep:
grep '^cal.*@a.*m$' input.txt
This matches lines beginning ^ with cal, followed by anything (.*), followed by @a, again followed by anything, with m at the end ($).
answered yesterday
OlorinOlorin
3,0691416
answered yesterday
OlorinOlorin
3,0691416
answered yesterday
OlorinOlorin
3,0691416
answered yesterday
OlorinOlorin
3,0691416
3,0691416
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
yesterday
add a comment |
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
yesterday
1
1
grep -x would get rid of the need for explicit anchors.– Kusalananda
yesterday
grep -x would get rid of the need for explicit anchors.– Kusalananda
yesterday
add a comment |
Callum is a new contributor. Be nice, and check out our Code of Conduct.
Callum is a new contributor. Be nice, and check out our Code of Conduct.
Callum is a new contributor. Be nice, and check out our Code of Conduct.
Callum 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.
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%2f497160%2fregex-search-list-of-emails%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
