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Full Discussion: Problem with changing field separators in a file
Top Forums Shell Programming and Scripting Problem with changing field separators in a file Post 302497489 by alister on Thursday 17th of February 2011 10:46:12 AM
Old 02-17-2011
The following assumes that the file format is as simple as it appears (no special rules such as how to quote quotes, etc):

Code:
BEGIN {
    delimiter = ","
    new_delimiter = "|"
}

{
    len = length($0)
    in_quotes = 0
    for (i = 1; i <= len; i++) {
        char = substr($0, i, 1)
        if (char == "\"") {
            in_quotes = (in_quotes ? 0 : 1)
            continue
        }
        if (char == delimiter && !in_quotes)
            char = new_delimiter
        printf("%s", char)
    }
    printf("\n")
}

Code:
$ echo '100,100,"X",1234,"12A",,,"ab,c"' | awk -f csv.awk 
100|100|X|1234|12A|||ab,c

Regards,
Alister
 

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LEARN ABOUT DEBIAN

mdb-export

MDBTools(1)															       MDBTools(1)

NAME

       mdb-export - Export data in an MDB database table to CSV format.

SYNOPSIS

       mdb-export [-H] [-d delimiter] [-R row_delim] [[-Q] | [-q quote [-X escape]]] [-I] [-D format] database table

DESCRIPTION

       mdb-export is a utility program distributed with MDB Tools.

       It  produces  a	CSV  (comma separated value) output for the given table. Such output is suitable for importation into databases or spread-
       sheets.

OPTIONS

       -H     Supress header row

       -Q     Don't wrap text-like fields (text, memo, date) in quotes.  If not specified text fiels will be surrounded by " (double quote)  char-
	      acters.

       -d     Specify an alternative column delimiter If no delimiter is specified, table names will be delimited by a , (comma) character.

       -R     Specify a row delimiter

       -I     INSERT statements (instead of CSV). You must specify the SQL dialect.

       -D     Set the date format (see strftime(3) for details)

       -q     Use to wrap text-like fields. Default is ".

       -X     Use to escape quoted characters within a field.  Default is doubling.

       -N namespace
	      Prefix identifiers with namespace.

NOTES

ENVIRONMENT

       MDB_JET3_CHARSET
	      Defines the charset of the input JET3 (access 97) file. Default is CP1252. See iconv(1).

       MDBICONV
	      Defines the output charset to use for the SQL file. Default is UTF-8. mdbtools must have been compiled with iconv.

       MDBOPTS
	      semi-column separated list of options:

	      o  use_index

	      o  no_memo

	      o  debug_like

	      o  debug_write

	      o  debug_usage

	      o  debug_ole

	      o  debug_row

	      o  debug_props

	      o  debug_all is a shortcut for all debug_* options

SEE ALSO

       gmdb2(1) mdb-hexdump(1) mdb-prop(1) mdb-sql(1) mdb-ver(1) mdb-array(1) mdb-header(1) mdb-parsecsv(1) mdb-schema(1) mdb-tables(1)

HISTORY

       mdb-export first appeared in MDB Tools 0.1.

AUTHORS

       The mdb-export utility was written by Brian Bruns.

BUGS

       Memo fields are allowed to contain a newline characters, the current program does nothing about this.

0.7								   13 July 2013 						       MDBTools(1)
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