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wildcards with if statement?

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# 8  
Old 03-05-2007
Quote:
Originally Posted by murtaza
Hello
i am trying to use the wildcards with the if statement but it is displaying the error like this one

if [ $1=[0-9]* | *[0-9]* | *[0-9] ]
Any body can help me to for using the wild card option in the if case but i have used this code and working well with the case statement to enter the name without the integer number checks.
I thank in advance,
bye
You cannot use wildcards with test (a.k.a. [ ); use a case statement instead:

Code:
case $1 in
   [0-9]*|*[0-9]*| *[0-9] )
       ## do something here
        ;;
   *) ## do something else here
       ;;
esac

In fact, you don't need all three tests; the second one will catch all cases:

Code:
case $1 in
   *[0-9]* )
       ## do something here
        ;;
   *) ## do something else here
       ;;
esac

(Your if statement wouldn't work in any case; there needs to be space around the "=".)
# 9  
Old 03-06-2007
Quote:
Originally Posted by Perderabo
Example:
Code:
#! /usr/bin/ksh

needval=1

while ((needval)) ; do
        read val?'Enter a number - '
        if [[ $val = ?(+|-)+([0-9]) ]] ; then
                needval=0
        else
                echo $val is not an integer
        fi
done

echo val = $val
exit 0

This is the reverse of what you want, but it's a good example. An integer is some digits possibly preceded by one minus sign or one plus sign. We loop until we get what we want.
-------------------------------------------------------------------------
Thanks for reply. When I try to run above code then it displays the following syntax error. I tried many times to correct the syntax error but could not. Furthermore I want to tell u that i am using the bash shell.
Thanks in advance

ifwildcard: line 5: syntax error in conditional expression: unexpected token `('
ifwildcard: line 5: syntax error near `?(+'
ifwildcard: line 5: ` if [[ $val = ?(+|-)+([0-9]) ]] ; then'
# 10  
Old 03-06-2007
Quote:
Originally Posted by murtaza
-------------------------------------------------------------------------
Thanks for reply. When I try to run above code then it displays the following syntax error. I tried many times to correct the syntax error but could not. Furthermore I want to tell u that i am using the bash shell.
Thanks in advance

ifwildcard: line 5: syntax error in conditional expression: unexpected token `('
ifwildcard: line 5: syntax error near `?(+'
ifwildcard: line 5: ` if [[ $val = ?(+|-)+([0-9]) ]] ; then'

It works fine for me!!!!!
Checked in bash and ksh
# 11  
Old 03-06-2007
Quote:
Originally Posted by jacoden
It works fine for me!!!!!
Checked in bash and ksh
In bash it should give the errors that murtaza mentioned. (Unless you leave the first line intact which would cause the kernel to feed the script to ksh even when launched by bash.)

in bash:
Code:
#! /usr/local/bin/bash

needval=1

while ((needval)) ; do
        echo -n 'Enter a number - '
        read val
        if [[ $val =~ ^[-+]{0,1}[0-9]{1,}$ ]] ; then
                needval=0
        else
                echo $val is not an integer
        fi
done

echo val = $val
exit 0

# 12  
Old 03-07-2007
Quote:
Originally Posted by Perderabo
In bash it should give the errors that murtaza mentioned. (Unless you leave the first line intact which would cause the kernel to feed the script to ksh even when launched by bash.)

in bash:
Code:
#! /usr/local/bin/bash

needval=1

while ((needval)) ; do
        echo -n 'Enter a number - '
        read val
        if [[ $val =~ ^[-+]{0,1}[0-9]{1,}$ ]] ; then
                needval=0
        else
                echo $val is not an integer
        fi
done

echo val = $val
exit 0

Thanks u very much. Now it is working on bash. Can u recommend me the material to understand behind this logic.

once again thanks to solve my problem.
# 13  
Old 03-07-2007
hello brother! can we use the * wildcard with if and if yes then how?
# 14  
Old 03-07-2007
Problem: using * wildcard with if statement
Hello every body:
I am trying to use the * wildcard with if statement by this way
if [[ $fullname =~ *[0-9]* ]].
Can any body help me that how can use * with in the ifstatement?
Thanks in advance
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