Hi,
Here solution for checking a variable in Linux Bash is Float or Integer by using grep.
---- file : test.sh
function check_int(){
echo $1 | grep "^[0-9]*$" > /dev/null
if [ $? -ne 0 ]; then
echo $2 : $1 is not a number;
else
echo $2 : $1 is a number
fi
}
function check_float() {
echo $1 | grep "^[0-9]*\.[0-9]*$" > /dev/null
if [ $? -ne 0 ]; then
check_int $1 $2
else
echo $2 : $1 is a float number
fi
}
check_int 12 my_number
check_float 12.2 my_number
check_int 12a my_number
check_float 12a2 my_number
--------------------
yadavmahi@localhost:~/MahiYadav/scripts> bash test.sh
my_number : 12 is a number
my_number : 12.2 is a float number
my_number : 12a is not a number
my_number : 12a2 is not a number
Here solution for checking a variable in Linux Bash is Float or Integer by using grep.
---- file : test.sh
function check_int(){
echo $1 | grep "^[0-9]*$" > /dev/null
if [ $? -ne 0 ]; then
echo $2 : $1 is not a number;
else
echo $2 : $1 is a number
fi
}
function check_float() {
echo $1 | grep "^[0-9]*\.[0-9]*$" > /dev/null
if [ $? -ne 0 ]; then
check_int $1 $2
else
echo $2 : $1 is a float number
fi
}
check_int 12 my_number
check_float 12.2 my_number
check_int 12a my_number
check_float 12a2 my_number
yadavmahi@localhost:~/MahiYadav/scripts> bash test.sh
my_number : 12 is a number
my_number : 12.2 is a float number
my_number : 12a is not a number
my_number : 12a2 is not a number
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