On Wed, 12 May 1999, Robert Johannes wrote:
>What is the syntax for using the shell command "while" ?
while some-command-line
do
...
done
The body of the while command will execute as long as some-command-line
terminates with an exit status of 0. The system provides the commands "true"
and "false", which enables you to set a variable to either of these strings and
then use that variable as the operand to while (or if).
A shorthand notation for invoking the test command is supported, e.g.:
while [ some-expression ]
do
...
done
This is identical to:
while test some-expression
do
...
done
Do "man 1 test" to see a complete explanation of the kinds of expressions which
you can specify.
>I tried the code below, but it says "ppp0=ppp0: command not found"
>
>x=ppp0
>
>while $x=ppp0
>do "echo ppp is up"
>done
>
>How would I use while in the above code so as no to produce "ppp0=ppp0:
>command not found" ??
while [ "$x" = "ppp0" ]
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