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Conditional statement in bash

 
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# 1  
Old 08-13-2009
Conditional statement in bash
I want to combine 2 conditional statements by using -o in bash, but it won't work.

Code:
if [ ( $1 -lt 1 ) -o ( $1 -gt $nr ) ] ; then
echo "The number needs to be between 0 and $nr"
fi

Each time i execute the file it says:

Code:
./selectCitaat: line 10: syntax error near unexpected token `$1'

# 2  
Old 08-13-2009
Change the -o to a || and consider using [[ ]]

Code:
if [[   $1 -lt 1  ||   $1 -gt $nr  ] ; then

# 3  
Old 08-14-2009
The parentheses are not required and give a syntax error.
Code:
if [ $1 -lt 1 -o $1 -gt $nr ] ; then
       echo "The number needs to be between 0 and $nr"
fi

# 4  
Old 08-17-2009
Code:
if [ $1 -lt 1 ] || [ $1 -gt $nr ] ; then
       echo "The number needs to be between 0 and $nr"
fi

use
|| for OR
&& for AND

scripter
 
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