Count number of repeated multi-character strings in file in bash
I am trying to search for consecutive, repeated instances of numbers in a file, with each number on a different line. It's easiest to show what I mean in an example.
For example, my input would be:
16
16
8
8
16
16
4
8
8
8
And my output would be:
16 2
8 2
16 2
4 1
8 3
This may appear to be a duplicate, but though I have found many solutions (like this one) for finding the repetitions of a single character, none of them are able to search for multiple repeated characters.
text-processing
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
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ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
I am trying to search for consecutive, repeated instances of numbers in a file, with each number on a different line. It's easiest to show what I mean in an example.
For example, my input would be:
16
16
8
8
16
16
4
8
8
8
And my output would be:
16 2
8 2
16 2
4 1
8 3
This may appear to be a duplicate, but though I have found many solutions (like this one) for finding the repetitions of a single character, none of them are able to search for multiple repeated characters.
text-processing
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Do you mean repeated characters (e.g.111), repeated strings (e.g.123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?
– terdon♦
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago
add a comment |
I am trying to search for consecutive, repeated instances of numbers in a file, with each number on a different line. It's easiest to show what I mean in an example.
For example, my input would be:
16
16
8
8
16
16
4
8
8
8
And my output would be:
16 2
8 2
16 2
4 1
8 3
This may appear to be a duplicate, but though I have found many solutions (like this one) for finding the repetitions of a single character, none of them are able to search for multiple repeated characters.
text-processing
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am trying to search for consecutive, repeated instances of numbers in a file, with each number on a different line. It's easiest to show what I mean in an example.
For example, my input would be:
16
16
8
8
16
16
4
8
8
8
And my output would be:
16 2
8 2
16 2
4 1
8 3
This may appear to be a duplicate, but though I have found many solutions (like this one) for finding the repetitions of a single character, none of them are able to search for multiple repeated characters.
text-processing
text-processing
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
edited 8 hours ago
Rui F Ribeiro
39.5k1479133
39.5k1479133
asked 8 hours ago
ToasterFrogsToasterFrogs
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
ToasterFrogsToasterFrogs
132
asked 8 hours ago
ToasterFrogsToasterFrogs
132
132
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
ToasterFrogs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Do you mean repeated characters (e.g.111), repeated strings (e.g.123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?
– terdon♦
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago
add a comment |
Do you mean repeated characters (e.g.111), repeated strings (e.g.123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?
– terdon♦
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago
Do you mean repeated characters (e.g.
111), repeated strings (e.g. 123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?– terdon♦
8 hours ago
Do you mean repeated characters (e.g.
111), repeated strings (e.g. 123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?– terdon♦
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago
add a comment |
1 Answer
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votes
You can use uniq to do this, though the standard format of its output is slightly different.
$ < in uniq -c
2 16
2 8
2 16
1 4
3 8
Assuming in is a file that contains the input, you'll get what you see above.
answered 8 hours ago
TomaszTomasz
9,26852965
which could be piped throughawk '{print $2,$1}'for a quick'n'dirty way to get output in the order shown by the OP
– steeldriver
8 hours ago
add a comment |
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1 Answer
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1 Answer
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active
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votes
You can use uniq to do this, though the standard format of its output is slightly different.
$ < in uniq -c
2 16
2 8
2 16
1 4
3 8
Assuming in is a file that contains the input, you'll get what you see above.
answered 8 hours ago
TomaszTomasz
9,26852965
which could be piped throughawk '{print $2,$1}'for a quick'n'dirty way to get output in the order shown by the OP
– steeldriver
8 hours ago
add a comment |
You can use uniq to do this, though the standard format of its output is slightly different.
$ < in uniq -c
2 16
2 8
2 16
1 4
3 8
Assuming in is a file that contains the input, you'll get what you see above.
answered 8 hours ago
TomaszTomasz
9,26852965
which could be piped throughawk '{print $2,$1}'for a quick'n'dirty way to get output in the order shown by the OP
– steeldriver
8 hours ago
add a comment |
You can use uniq to do this, though the standard format of its output is slightly different.
$ < in uniq -c
2 16
2 8
2 16
1 4
3 8
Assuming in is a file that contains the input, you'll get what you see above.
answered 8 hours ago
TomaszTomasz
9,26852965
You can use uniq to do this, though the standard format of its output is slightly different.
$ < in uniq -c
2 16
2 8
2 16
1 4
3 8
Assuming in is a file that contains the input, you'll get what you see above.
answered 8 hours ago
TomaszTomasz
9,26852965
answered 8 hours ago
TomaszTomasz
9,26852965
answered 8 hours ago
TomaszTomasz
9,26852965
answered 8 hours ago
TomaszTomasz
9,26852965
9,26852965
which could be piped throughawk '{print $2,$1}'for a quick'n'dirty way to get output in the order shown by the OP
– steeldriver
8 hours ago
add a comment |
which could be piped throughawk '{print $2,$1}'for a quick'n'dirty way to get output in the order shown by the OP
– steeldriver
8 hours ago
which could be piped through
awk '{print $2,$1}' for a quick'n'dirty way to get output in the order shown by the OP– steeldriver
8 hours ago
which could be piped through
awk '{print $2,$1}' for a quick'n'dirty way to get output in the order shown by the OP– steeldriver
8 hours ago
add a comment |
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Do you mean repeated characters (e.g.
111), repeated strings (e.g.123123) or repeated lines? Will each line of your input only consist of a string of characters (including numbers) and no spaces? Do you just want repeated lines?– terdon♦
8 hours ago
@terdon - it was a badly worded title - I meant to put repeated lines. My question sort of changed as I was writing the post. I'll edit the title.
– ToasterFrogs
8 hours ago