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 Jan 28 at 9:47
Olorin
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
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 Jan 28 at 9:47
Olorin
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
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 Jan 28 at 9:47
Olorin
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
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 Jan 28 at 9:47
Olorin
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
edited Jan 28 at 9:47
Olorin
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
edited Jan 28 at 9:47
Olorin
3,8581721
edited Jan 28 at 9:47
Olorin
3,8581721
edited Jan 28 at 9:47
Olorin
3,8581721
3,8581721
asked Jan 28 at 9:45
CallumCallum
1133
asked Jan 28 at 9:45
CallumCallum
1133
asked Jan 28 at 9:45
CallumCallum
1133
1133
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 Jan 28 at 9:49
OlorinOlorin
3,8581721
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
Jan 28 at 10:03
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
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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 Jan 28 at 9:49
OlorinOlorin
3,8581721
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
Jan 28 at 10:03
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 Jan 28 at 9:49
OlorinOlorin
3,8581721
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
Jan 28 at 10:03
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 Jan 28 at 9:49
OlorinOlorin
3,8581721
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 Jan 28 at 9:49
OlorinOlorin
3,8581721
answered Jan 28 at 9:49
OlorinOlorin
3,8581721
answered Jan 28 at 9:49
OlorinOlorin
3,8581721
answered Jan 28 at 9:49
OlorinOlorin
3,8581721
3,8581721
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
Jan 28 at 10:03
add a comment |
1
grep -xwould get rid of the need for explicit anchors.
– Kusalananda
Jan 28 at 10:03
1
1
grep -x would get rid of the need for explicit anchors.– Kusalananda
Jan 28 at 10:03
grep -x would get rid of the need for explicit anchors.– Kusalananda
Jan 28 at 10:03
add a comment |
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