Search Results

Thanks balajesuri for correction and information.

I am using ksh and single bracket works fine for ksh. :)

Which bash version you are using

there was a change between 3.1 and 3.2

if its 3.2 try


if [[ "${ch}" =~ [0-9] ]]


With out double quotes on regex.

Thanks Balasuri for...

You can use regular expression match

if [ "${ch}" =~ "[0-9]" ]

if [ "${ch}" -eq "3" -o "${ch}" -eq "4" ]


Should be


if [ "${ch}" = "3" -o "${ch}" = "4" ]

OR

if [ ${ch} -eq 3 -o ${ch} -eq 4 ]


= for comparing string
-eq for numbers