Duplicate rows in text file
I need to duplicate rows in text file with a specific number of times. For example my data file is:
jplg3350.18i
jplg3360.18i
jplg3370.18i
I need to duplicate the lines three times as follows;
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
bash text-processing
edited Jan 7 at 14:09
Kulfy
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
add a comment |
I need to duplicate rows in text file with a specific number of times. For example my data file is:
jplg3350.18i
jplg3360.18i
jplg3370.18i
I need to duplicate the lines three times as follows;
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
bash text-processing
edited Jan 7 at 14:09
Kulfy
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13
add a comment |
I need to duplicate rows in text file with a specific number of times. For example my data file is:
jplg3350.18i
jplg3360.18i
jplg3370.18i
I need to duplicate the lines three times as follows;
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
bash text-processing
edited Jan 7 at 14:09
Kulfy
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
I need to duplicate rows in text file with a specific number of times. For example my data file is:
jplg3350.18i
jplg3360.18i
jplg3370.18i
I need to duplicate the lines three times as follows;
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
bash text-processing
bash text-processing
edited Jan 7 at 14:09
Kulfy
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
edited Jan 7 at 14:09
Kulfy
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
edited Jan 7 at 14:09
Kulfy
4,05351241
edited Jan 7 at 14:09
Kulfy
4,05351241
edited Jan 7 at 14:09
Kulfy
4,05351241
4,05351241
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
asked Jan 7 at 10:41
deepblue_86deepblue_86
5781023
5781023
See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13
add a comment |
See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13
See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13
See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13
add a comment |
1 Answer
1
active
oldest
votes
For 3 times you can just run:
cat file file file > new_file
And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.
However it's a better idea to use a simple "loop" in combination with cat command.
3 times example:
for i in {1..3}; do cat file >> new_file; done
Or as you asked in comments:
limit=3
for ((i=0; i<limit; i++)); do cat file >> new_file; done
Change '3' to any number you want.
Result:
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
Another lazy trick is to use brace expansion with an empty string:cat file{,,} > new_file
– wjandrea
Jan 7 at 14:17
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
For 3 times you can just run:
cat file file file > new_file
And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.
However it's a better idea to use a simple "loop" in combination with cat command.
3 times example:
for i in {1..3}; do cat file >> new_file; done
Or as you asked in comments:
limit=3
for ((i=0; i<limit; i++)); do cat file >> new_file; done
Change '3' to any number you want.
Result:
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
Another lazy trick is to use brace expansion with an empty string:cat file{,,} > new_file
– wjandrea
Jan 7 at 14:17
add a comment |
For 3 times you can just run:
cat file file file > new_file
And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.
However it's a better idea to use a simple "loop" in combination with cat command.
3 times example:
for i in {1..3}; do cat file >> new_file; done
Or as you asked in comments:
limit=3
for ((i=0; i<limit; i++)); do cat file >> new_file; done
Change '3' to any number you want.
Result:
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
Another lazy trick is to use brace expansion with an empty string:cat file{,,} > new_file
– wjandrea
Jan 7 at 14:17
add a comment |
For 3 times you can just run:
cat file file file > new_file
And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.
However it's a better idea to use a simple "loop" in combination with cat command.
3 times example:
for i in {1..3}; do cat file >> new_file; done
Or as you asked in comments:
limit=3
for ((i=0; i<limit; i++)); do cat file >> new_file; done
Change '3' to any number you want.
Result:
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
For 3 times you can just run:
cat file file file > new_file
And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.
However it's a better idea to use a simple "loop" in combination with cat command.
3 times example:
for i in {1..3}; do cat file >> new_file; done
Or as you asked in comments:
limit=3
for ((i=0; i<limit; i++)); do cat file >> new_file; done
Change '3' to any number you want.
Result:
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
jplg3350.18i
jplg3360.18i
jplg3370.18i
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
edited Jan 7 at 11:00
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
answered Jan 7 at 10:46
RavexinaRavexina
31.8k1482112
31.8k1482112
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
Another lazy trick is to use brace expansion with an empty string:cat file{,,} > new_file
– wjandrea
Jan 7 at 14:17
add a comment |
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
Another lazy trick is to use brace expansion with an empty string:cat file{,,} > new_file
– wjandrea
Jan 7 at 14:17
2
2
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
Jan 7 at 10:53
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
:)) Happy to you too George ;)
– Ravexina
Jan 7 at 10:54
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
@George, thank you very much.
– deepblue_86
Jan 7 at 11:07
1
1
Another lazy trick is to use brace expansion with an empty string:
cat file{,,} > new_file– wjandrea
Jan 7 at 14:17
Another lazy trick is to use brace expansion with an empty string:
cat file{,,} > new_file– wjandrea
Jan 7 at 14:17
add a comment |
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See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
Jan 7 at 14:13