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Top Forums Shell Programming and Scripting To replace the value of the column in a fixed width file Post 302839683 by Skrynesaver on Friday 2nd of August 2013 09:53:41 AM
Old 08-02-2013
So you need to split the data into 3 (x , xx and xxxxxxxxxxxxxxx) overwriting the second potion with "yyy" ?

Code:
perl -ne 'print substr($_ ,0,1),"yyy",subsr($_,3)' file_name

---------- Post updated at 02:53 PM ---------- Previous update was at 02:53 PM ----------

So you need to split the data into 3 (x , xx and xxxxxxxxxxxxxxx) overwriting the second potion with "yy" ?

Code:
perl -ne 'print substr($_ ,0,1),"yy",subsr($_,3)' file_name

 

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SPLIT(1)								FSF								  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [OPTION] [INPUT [PREFIX]] DESCRIPTION
Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default PREFIX is `x'. With no INPUT, or when INPUT is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --suffix-length=N use suffixes of length N (default 2) -b, --bytes=SIZE put SIZE bytes per output file -C, --line-bytes=SIZE put at most SIZE bytes of lines per output file -l, --lines=NUMBER put NUMBER lines per output file --verbose print a diagnostic to standard error just before each output file is opened --help display this help and exit --version output version information and exit SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg. AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for split is maintained as a Texinfo manual. If the info and split programs are properly installed at your site, the command info split should give you access to the complete manual. split (coreutils) 4.5.3 February 2003 SPLIT(1)
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