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Help needed with Shell script !! [message #116580]

Wed, 20 April 2005 13:28

vishamr2000
Messages: 18
Registered: April 2005

Junior Member

Hi to all,

I badly need some help with this. I need a shell script version of some C code I wrote. The basic idea is as follows:

variable x is given the value of 1 at start in script. When it goes down the function, I want it to retain the value at which the program terminated when it first ran so that when the program runs a second time, it takes the last value that x got assigned (that is either a 0 or a 1).

if(x==1)
{

printf("Good Morning!!");
x=0;
}

else
if(x==0)
{

printf("Good Afternoon!!");
x=1;
}

Thx in advance..
Regards,
Visham

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Re: Help needed with Shell script !! [message #116862 is a reply to message #116580]

Fri, 22 April 2005 10:07

Frank Naude
Messages: 4579
Registered: April 1998

Senior Member

Try something like this:

#!/bin/ksh

if [ ! -r x ]; then
  # No value from previous run - initialize x
  x=1
else
  x=$((`cat x`))
  echo "Value of x from previous run = $x"
fi

if [ x -eq 1 ]; then
  echo "Good Morning!!"
  x=0;
else
  echo "Good Afternoon!!"
  x=1;
fi

# Save variable to file
echo $x >x

Best regards.

Frank

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Re: Help needed with Shell script !! [message #116879 is a reply to message #116580]

Fri, 22 April 2005 12:24

vishamr2000
Messages: 18
Registered: April 2005

Junior Member

Many thx for the reply Frank..

I'll give it a try and then let you know how it goes.

Thx again..

Regards,
Visham

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