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Full Discussion: Csv file parsing and validating
Top Forums Shell Programming and Scripting Csv file parsing and validating Post 302898391 by SriniShoo on Tuesday 22nd of April 2014 01:29:26 AM
Old 04-22-2014
I ran the same code and below is the output
Code:
$ cat conf
id,Numeric(2),NOT NULL
name,String(20)
state,String(10),NOT NULL
street_No,Numeric(4)
$ cat data
abc,john,MI,201
22,Lilly,CA,405
33,Richard,CA,21Q
444,Reet5,NY,258
55,Taylor,GI,3333
66,Merry,,3333
77,,FL,22
$ awk -F "," 'NR == FNR {gsub("[)(]", "-", $2); split($2, a, "-"); d[NR] = a[1]; l[NR] = a[2]; n[NR] = ($3 == "NOT NULL") ? 1 : 0; next}
 {for(i = 1; i <= NF; i++)
  {if(((d[i] == "Numeric" && (($i + 0) == $i || $i == "")) || d[i] == "String") && (length($i) <= l[i]) && (length($i) >= n[i]))
      {f = 1} else {f = 0};
    if(f == 0) {print $0 > "badrec"; next}} print $0 > "goodrec"}' conf data
$ cat goodrec
22,Lilly,CA,405
55,Taylor,GI,3333
77,,FL,22
$ cat badrec
abc,john,MI,201
33,Richard,CA,21Q
444,Reet5,NY,258
66,Merry,,3333
$

 

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cat

CAT(1)                                                             User Commands                                                            CAT(1)

NAME

       cat - concatenate files and print on the standard output

SYNOPSIS

       cat [OPTION]... [FILE]...

DESCRIPTION

       Concatenate FILE(s) to standard output.

       With no FILE, or when FILE is -, read standard input.

       -A, --show-all
              equivalent to -vET

       -b, --number-nonblank
              number nonempty output lines, overrides -n

       -e     equivalent to -vE

       -E, --show-ends
              display $ at end of each line

       -n, --number
              number all output lines

       -s, --squeeze-blank
              suppress repeated empty output lines

       -t     equivalent to -vT

       -T, --show-tabs
              display TAB characters as ^I

       -u     (ignored)

       -v, --show-nonprinting
              use ^ and M- notation, except for LFD and TAB

       --help display this help and exit

       --version
              output version information and exit

EXAMPLES

       cat f - g
              Output f's contents, then standard input, then g's contents.

       cat    Copy standard input to standard output.

AUTHOR

       Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report cat translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       tac(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/cat>
       or available locally via: info '(coreutils) cat invocation'

GNU coreutils 8.28                                                 January 2018                                                             CAT(1)
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