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Top Forums Shell Programming and Scripting Split and add header and trailer from input file Post 302904137 by techedipro on Monday 2nd of June 2014 10:25:25 AM
Old 06-02-2014
Split and add header and trailer from input file

I need to split the file based on pattern from position 34-37 while retaining the header and trailer records in each individual split file

Also is it possible to output the TOM and PAT records in the same output file ?

I need the output file names same as xyz_pattern_Datetimestamp.txt

Code:
 
H00000012345678900000000 xxxxxxxxxxxxxx
D00000012300000000000000 xxxxxxxxTOMxxx
D00000045600000000000000 xxxxxxxxTOMxxx
D00000078900000000000000 xxxxxxxxPATxxx
D00000065000000000000000 xxxxxxxxPATxxx
D00000023100000000000000 xxxxxxxxPATxxx
D00000013200000000000000 xxxxxxxxSAMxxx
D00000036500000000000000 xxxxxxxxSAMxxx
T00000025800000000000000 xxxxxxxxxxxxxxx

So far I was able to split the file with the below command but struggling with header and trailer on individual split file and also with the output file name

Code:
 
awk -F "" 'BEGIN {x=""} NR>1 { x=substr($0,34,3); print $0 >> x".txt" }' Test.txt

 

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SPLIT(1)						    BSD General Commands Manual 						  SPLIT(1)

NAME
split -- split a file into pieces SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m]] [-l line_count] [-p pattern] [file [name]] DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash ('-') or absent, split reads from the standard input. The options are as follows: -a suffix_length Use suffix_length letters to form the suffix of the file name. -b byte_count[k|m] Create smaller files byte_count bytes in length. If ``k'' is appended to the number, the file is split into byte_count kilobyte pieces. If ``m'' is appended to the number, the file is split into byte_count megabyte pieces. -l line_count Create smaller files n lines in length. -p pattern The file is split whenever an input line matches pattern, which is interpreted as an extended regular expression. The matching line will be the first line of the next output file. This option is incompatible with the -b and -l options. If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci- fied, two letters are used as the suffix. If the name argument is not specified, the file is split into lexically ordered files named with the prefix ``x'' and with suffixes as above. ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of split as described in environ(7). EXIT STATUS
The split utility exits 0 on success, and >0 if an error occurs. SEE ALSO
csplit(1), re_format(7) STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A split command appeared in Version 3 AT&T UNIX. BUGS
The maximum line length for matching patterns is 65536. BSD
August 21, 2005 BSD
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