expr:syntax error

sunil.narnaware · 20-08-2008, 08:39 PM

Problem Statement:
$x=10
$y=20
$expr $x * $y
$expr: syntax error

" Frnds i dont want to use $expr $x \* $y(the correct option) instead of $expr $x * $y to get the output 200."

how can i execute the above program and still get the output '200'?

**bakuryu** · 20-08-2008, 08:50 PM

any reasons why not using \* ? saving keystrokes

echo "$x * $y" | bc

sunil.narnaware · 22-08-2008, 06:40 PM

ya the answer u gave is correct but i want the way i hv written and executed. so any solution??? any modification required in any file......?

**bakuryu** · 22-08-2008, 07:56 PM

you can use the korn shell for that since it can distinguish between * as wildcard and * for multiplication.

xiangxianni · 17-04-2009, 08:41 AM

You can use '' instead of "\"

expr $x '*' $y s

This works in C Shell

20-08-2008, 08:39 PM	#1
sunil.narnaware Newbie Join Date: Apr 2006 Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	expr:syntax error Problem Statement: $x=10 $y=20 $expr $x * $y $expr: syntax error " Frnds i dont want to use $expr $x \* $y(the correct option) instead of $expr $x * $y to get the output 200." how can i execute the above program and still get the output '200'?

20-08-2008, 08:50 PM	#2
bakuryu ƒ(ψ)=Θº×φ Join Date: May 2006 Location: India Age: 23 Posts: 6,621 Thanks: 19 Thanked 645 Times in 603 Posts Rep Power: 87 OS:	Re: expr:syntax error any reasons why not using \* ? saving keystrokes echo "$x * $y" \| bc __________________ Please don't click here

22-08-2008, 06:40 PM	#3
sunil.narnaware Newbie Join Date: Apr 2006 Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	Re: expr:syntax error ya the answer u gave is correct but i want the way i hv written and executed. so any solution??? any modification required in any file......?

22-08-2008, 07:56 PM	#4
bakuryu ƒ(ψ)=Θº×φ Join Date: May 2006 Location: India Age: 23 Posts: 6,621 Thanks: 19 Thanked 645 Times in 603 Posts Rep Power: 87 OS:	Re: expr:syntax error you can use the korn shell for that since it can distinguish between * as wildcard and * for multiplication.

17-04-2009, 08:41 AM	#5
xiangxianni Newbie Join Date: Apr 2009 Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0 OS:	Re: expr:syntax error You can use '' instead of "\" expr $x '*' $y s This works in C Shell __________________ Windows 7 Guide \| PC Tips

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expr:syntax error

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