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Top Forums Shell Programming and Scripting To replace the value of the column in a fixed width file Post 302839589 by ginrkf on Friday 2nd of August 2013 06:03:20 AM
Old 08-02-2013
To replace the value of the column in a fixed width file

I have a fixed with file with header & trailer length having the same length of the detail record file.

The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file
Currently I am adding 3 spaces in header and 6 spaces in trailer to match with detail record length

current value of my header is
Column Name Data length
---------- ----------
Code:
A        1
B        2
C        2
D        8
E        8

current value of my trailer is

Column Name Data length
---------- ----------
Code:
A        1
B        2
C        15

My requirement is to change the value of the second column(Column B) from xx to yyy both in header and trailer.
After this change I should have only two spaces in header and 5 spaces in trailer

Can some one help here please

---------- Post updated at 05:03 AM ---------- Previous update was at 02:43 AM ----------

I have a fixed with file with header & trailer length having the same length of the detail record file.

The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file
Currently I am adding 3 spaces in header and 6 spaces in trailer to match with detail record length

current value of my header is

Code:
Column Name  Data length
----------   ----------
A        1
B        2
C        2
D        8
E        8

current value of my trailer is

Code:
Column Name  Data length
----------   ----------
A        1
B        2
C        15

My requirement is to change the value of the second column(Column B) from xx to yyy both in header and trailer.
After this change I should have only two spaces in header and 5 spaces in trailer

Last edited by Franklin52; 08-02-2013 at 04:48 AM.. Reason: Please use code tags
 

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uuencode(5)							File Formats Manual						       uuencode(5)

Name
       uuencode - format of an encoded uuencode file

Description
       Files  output by consist of a header line, followed by a number of body lines, and a trailer line.  The command ignores any lines preceding
       the header or following the trailer.  Lines preceding a header must not, of course, look like a header.

       The header line is distinguished by having the first six characters by the word ``begin'', followed by a space.	The next item on the  line
       is a mode (in octal) and a string which names the remote file.  A space separates the three items in the header line.

       The  body  consists  of	a  number of lines, each at most 62 characters long including the trailing new line.  These consist of a character
       count, followed by encoded characters, followed by a new line.  The character count is a single printing character and represents an  inte-
       ger, the number of bytes the rest of the line represents.  Such integers are always in the range from 0 to 63 and can be determined by sub-
       tracting the character space (octal 40) from the character.

       Groups of 3 bytes are stored in 4 characters, with 6 bits per character.  All are offset by a space to make the characters print.  The last
       line may be shorter than the normal 45 bytes.  If the size is not a multiple of 3, this fact can be determined by the value of the count on
       the last line.  Extra dummy characters are included to make the character count a multiple of 4.  The body is terminated by a line  with  a
       count of zero.  This line consists of one ASCII space.

       The trailer line consists of "end" on a line by itself.

See Also
       mail(1), uucp(1c), uudecode(1c), uuencode(1c), uusend(1c)

																       uuencode(5)
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