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Full Discussion: validating a input file for numeric and character
Top Forums Shell Programming and Scripting validating a input file for numeric and character Post 302274158 by cfajohnson on Tuesday 6th of January 2009 11:57:52 PM
Old 01-07-2009
Quote:
Originally Posted by trichyselva
i have a input file like this

001|rahim|bajaj|20090102

while reading the file i need to check whether the first column is a number
second column is a name

is there any methodology to check for the same

Code:
while IFS='|' read a b c d
do
  case $a in
    *[![:digit:]]*) echo First column is not a number ;;
    *) echo First column is a number ;;
  esac

  case $b in
   *[![:alpha:]]*) echo Second column is not a name ;;
   *) echo Second column is a name ;;
  esac
done < "$FILE"

 

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LEARN ABOUT DEBIAN

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
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