if condition ... - Shell Programming and Scripting

mahabunta · #1 (**permalink**) 02-13-2007

i have following if condition

if [ "$data_type" == "ASCII" ]

above statement is case sensitive.....what is syntax if i have to make above comparision case insensetive

djp · #2 (**permalink**) 02-13-2007

Code:

if [ "$data_type" = "ASCII" ] || \
   [ "$data_type" = "ascii" ]

radoulov · #3 (**permalink**) 02-13-2007

Code:

case "$data_type" in [Aa][Ss][Cc][Ii][Ii])echo OK;;*)echo KO;;esac

Code:

[[ "$data_type" = [Aa][Ss][Cc][Ii][Ii] ]]&&echo OK||echo KO

sb008 · #4 (**permalink**) 02-13-2007

data_type=`echo $data_type | tr '[a-z]' '[A-Z]'`
if [ "$data_type" == "ASCII" ]

aigles · #5 (**permalink**) 02-14-2007

With ksh you can declare a variable with the attribute 'contains always uppercase' :

Code:

typeset -u UpperVar
UpperVar='AbCdEf'
echo $UpperVar   # -> Ouput is : ABCDEF

In the same way you can use the -l option for lowercase contents.

jean-Pierre.

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