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Parsing out records from one huge record Parsing out records from one huge record
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  #1 (permalink)  
Old 03-07-2008
bwrynz1 bwrynz1 is offline
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Parsing out records from one huge record
Hi,

I have one huge record and know that each record in the file is 550 bytes long. How do I parse out individual records from the single huge record.

Thanks,
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Old 03-07-2008
shamrock shamrock is offline Forum Advisor  
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Quote:
Originally Posted by bwrynz1 View Post
Hi,

I have one huge record and know that each record in the file is 550 bytes long. How do I parse out individual records from the single huge record.

Thanks,
Show how the input (one huge record) and what the output (individual records from the single huge record) looks like.
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Old 03-07-2008
bwrynz1 bwrynz1 is offline
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The one huge record file is 9 MB long... I'm sorry I can't post it here.

But assume there is a record as follows -
1234567890abcdefghij1234567890abcdefghij1234567890
and I wanted to put a line break after each 10 characters and get the following -
1234567890
abcdefghij
1234567890
abcdefghij
1234567890

Thanks for offering to help
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Old 03-07-2008
bwrynz1 bwrynz1 is offline
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The one huge record file is 9 MB long... I'm sorry I can't post it here.

But assume there is a record as follows -
1234567890abcdefghij1234567890abcdefghij1234567890
and I wanted to put a line break after each 10 characters and get the following -
1234567890
abcdefghij
1234567890
abcdefghij
1234567890

Thanks for offering to help
  #5 (permalink)  
Old 03-07-2008
jim mcnamara jim mcnamara is offline Forum Staff  
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No UNIX tool can read a 9MB record. If you look at the man page for dd, you can specify a cbs=10:

Code:
dd cbs=10 conv=unblock < oldfile > newfile
This creates a stream of carriage returns at the end of 10 character records.
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