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 Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
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 Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
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♦
Jan 19 at 18:16
@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
Jan 19 at 18:25
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 Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
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 Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
edited Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
edited Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
edited Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
edited Jan 19 at 18:20
Rui F Ribeiro
39.9k1479134
39.9k1479134
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
asked Jan 19 at 18:06
ToasterFrogsToasterFrogs
443
443
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♦
Jan 19 at 18:16
@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
Jan 19 at 18:25
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♦
Jan 19 at 18:16
@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
Jan 19 at 18:25
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♦
Jan 19 at 18:16
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♦
Jan 19 at 18:16
@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
Jan 19 at 18:25
@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
Jan 19 at 18:25
add a comment |
1 Answer
1
active
oldest
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 Jan 19 at 18:21
TomaszTomasz
9,51652965
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
Jan 19 at 18:25
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
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 Jan 19 at 18:21
TomaszTomasz
9,51652965
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
Jan 19 at 18:25
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 Jan 19 at 18:21
TomaszTomasz
9,51652965
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
Jan 19 at 18:25
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 Jan 19 at 18:21
TomaszTomasz
9,51652965
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 Jan 19 at 18:21
TomaszTomasz
9,51652965
answered Jan 19 at 18:21
TomaszTomasz
9,51652965
answered Jan 19 at 18:21
TomaszTomasz
9,51652965
answered Jan 19 at 18:21
TomaszTomasz
9,51652965
9,51652965
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
Jan 19 at 18:25
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
Jan 19 at 18:25
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
Jan 19 at 18:25
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
Jan 19 at 18:25
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♦
Jan 19 at 18:16
@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
Jan 19 at 18:25