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Full Discussion: Single char
Top Forums Shell Programming and Scripting Single char Post 302779811 by Roozo on Wednesday 13th of March 2013 11:29:36 AM
Old 03-13-2013
Single char

Task 2:

When Im tring script called char that checks a single character on the
command line, c. If the character is a digit, digit is displayed. If the
character is an upper or lowercase alphabetic character, letter is
displayed. Otherwise, other is displayed. Have the script print an
error message if the argument c is more than one character in length.

How to pass the alphabet characters as a argument in case and in if block? How to pass multiple numbers in a single case?
Help!! to correct the code

Code:
#!/bin/ksh
 
c=$1
if [[ c -le 9 ]]
then
echo "Proceed "
elif [[ c -eq a-z ]]
then
echo "alphabet"
else
echo "More than one char in length"
fi
 
case $1 in
 
1-9) echo "The value is a number"
;;
a-z) echo "the value is a alphabet"
;;
*) echo "Other"
;;
esac

 

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ECHO(1) 						    BSD General Commands Manual 						   ECHO(1)

NAME
echo -- write arguments to the standard output SYNOPSIS
echo [-n] [string ...] DESCRIPTION
The echo utility writes any specified operands, separated by single blank (' ') characters and followed by a newline (' ') character, to the standard output. The following option is available: -n Do not print the trailing newline character. The end-of-options marker -- is not recognized and written literally. The newline may also be suppressed by appending 'c' to the end of the string, as is done by iBCS2 compatible systems. Note that the -n option as well as the effect of 'c' are implementation-defined in IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. For porta- bility, echo should only be used if the first argument does not start with a hyphen ('-') and does not contain any backslashes (''). If this is not sufficient, printf(1) should be used. Most shells provide a builtin echo command which tends to differ from this utility in the treatment of options and backslashes. Consult the builtin(1) manual page. EXIT STATUS
The echo utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), csh(1), printf(1), sh(1) STANDARDS
The echo utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. BSD
November 12, 2010 BSD
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