KornShell Error 0403-004 Specify a parameter with this command

Question

This KornShell code is throwing the following error:

test.ksh

#! /usr/bin/ksh if [ ${fooVariable} = "" ]; then fooVariable="fooString" fi echo "${fooVariable}"

Error:

@:/tmp #./test.ksh ./test.ksh[3]: test: 0403-004 Specify a parameter with this command.

Why is this error being thrown and how to fix it?

javaPlease42 · Accepted Answer · 2015-01-13 20:18:01Z

6

Solution:

Put double quotes around variable.

test.ksh

#! /usr/bin/ksh if [ "${fooVariable}" = "" ]; then fooVariable="fooString" fi echo "${fooVariable}"

Output:

@:/tmp #./test.ksh fooString

answered Jan 13, 2015 at 20:18

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1 Comment

Also you can use the special syntax that ksh provides for setting default values. var1_with_default=${var1:=bar}; echo $var1_with_default