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conditional statement

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# 1  
Old 08-19-2007
conditional statement
Hi
Does Unix have a conditional statement like Java as follows:
Condition ? Statement1 : Statement2

Thanks
# 2  
Old 08-19-2007
Quote:
Originally Posted by lalelle
Does Unix have...
UNIX can run C, C++, Fortran, Java, Scripts, Perl, Python, Pascal, COBAL etc, so yes it can.
# 3  
Old 08-19-2007
Sorry I meant shell script.

Basically, I want to do:
[ `echo "abcd" | cut -c1` = "a" ] && echo "a" ? echo "b"

Normally, it is a good idea or not to put a command in a test operation.
For instance, [ `echo "abcd" | cut -c1` = "a" ]

If not what else I can do.

Thank you
# 4  
Old 08-19-2007
if ... then ... fi

case ... in ..... esac

all that a ? b : c does is if a then result is b else it's c.
# 5  
Old 08-19-2007
I know about if or case statement. I am just wondering that i can make it short in one sentence like

[ `echo "abcd" | cut -c1` = "a" ] && echo "a" : echo "b"

By the way thanks so much
I am now assuming that there is not any.
# 6  
Old 08-20-2007
If it's any consolation, "x ? y : z" almost didn't get into the Java language.

Basically it's not needed.

It's main advantage in C is for complex macro expansion such as va_arg etc.
# 7  
Old 08-20-2007
You can fall into a trap chasing after "x ? y : z". See this post from cfajohnson: link
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