I have a variable which should be any number between 1 and 50.
It could also be any string/empty string.
I have a code written below. The point is when the variable contains string.
I don't want the code below to error out. Instead fall in the else bucket.
You don't have an "else bucket"; dothis_2 will be executed if either the numerical test or dothis_1 fails.
How can I test a variable to see if its in the right format?
The format for the variable would be 'DDMMYYYY HH:MM:SS' and is passed from a command line argument.
Any help would be appreciated (2 Replies)
hi forum
i beginning with script and i want test un null variable in a schell
i just don t know the syntax here is a litle example
y=test
echo $y
unset y
echo $y (so here Y = Null)
if Y=Null
then
echo "y is null"
exit
fi (1 Reply)
I'm using the following line in bash to test whether an argument supplied is an absolute path or not:
if echo $1 | grep '^/' > /dev/null
then
absolute=1
else
absoute=0
fi
The line appears to work but seems somewhat unprofessional looking to me. Is it an acceptable... (2 Replies)
hi,
i store a constant in a variable and want to test whether it is M or Z.
how can i achieve this?? please help
variable='M'
if
then
ehco 'success'
fi;
is this right ?? (2 Replies)
I'm trying to test and see whether a variable that is being extracted from a line in a file is numeric or not. I have tried everything that I can think of and I cannot figure out how to get it to work. I am trying to test and see if the string extracted contains 5 numeric digits. This is what I... (8 Replies)
This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
Hello, Unix-forums!
My problem:
read -p "Enter any number, please" number
sleep 1
echo $number | tr -d 0-9
test -z $number && echo "Thank you" || echo "This is not a number"Test always displays "This is not a number". It doesn't matter if I entered a or 1.
But if I order
echo... (2 Replies)
Hi,
I am trying to get the oracle variables and pass the values in sql placed in procedure.
VARIABLE
vstat='ASDS,FGDS,VCGD,VCXC'
Query :
select distinct dept from College
where section in ('C','D')
AND CODES =''
AND NAMES IN ('RAJ','SAM');
I want CODES values to be taken from vstat... (1 Reply)
Hello,
I have two files, f1 and f2. f1 has 5 columns like so:
a b c d 154
e f g h 365
.....
f2 has two columns, the first column contains the name of the above file and second column contains a constant which is to be used for division.
e.g.
file1 56
I want to divide the 5th... (2 Replies)