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Full Discussion: Adding a "|" character for a text file
Top Forums Shell Programming and Scripting Adding a "|" character for a text file Post 302570611 by agama on Thursday 3rd of November 2011 09:54:24 PM
Old 11-03-2011
I assumed data was already in fixed columns. Save this to a file named something like add_pipe.ksh and invoke with the list of columns where you'd like a pipe symbol supplied on the command line. It automatically adds one at the beginning and ending of the line.

Code:
#!/usr/bin/env ksh

awk -v list="$@" '
BEGIN {
        n = split( list, col, " " );
    }
    {
        last = 1;
        printf( "|" );
        for( i = 1; i <= n; i++ )
        {
            printf( "%s | ", substr( $0, last, col[i]-1 ) );
            last = col[i]+1;
        }
        printf( "%s|\n", substr( $0, last ) );
    }
'

Invoke like this:
Code:
add_pipe.ksh 10 25 50 62

to replace the caracter at character positions 10, 25, 50 and 62 with " | ". Per your example, it adds spaces.
 

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LEARN ABOUT MINIX

shift

shift(1)                                                           User Commands                                                          shift(1)

NAME

       shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words

SYNOPSIS

   sh
       shift [n]

   csh
       shift [variable]

   ksh
       * shift [n]

DESCRIPTION

   sh
       The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.

   csh
       The  components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
       not to be set or to have a null value.

   ksh
       The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can  be  any  arithmetic  expression  that
       evaluates to a non-negative number less than or equal to $#.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words,  following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
           able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation  are  not
           performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), ksh(1), sh(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                           shift(1)
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