help_for script

[Soul_1]

Hi,

I wrote one script to print the first 5 numbers
I want to modify this script in such a way that
it should display 1 and then replace 1 with 2 and so on.Its just like a stop watch.


#
echo "assigning value"
Value=1
while ((Value <= 5))
do
echo $Value
((Value=Value+1))
done


Thanks in advance

[James R. Ferguson · Accepted solution]

Hi Soul:

# cat ./timer
#!/usr/bin/sh
echo "assigning value"
Value=1
while ((Value <= 5))
do
echo "${Value}\b\c"
sleep 1
((Value=Value+1))
done
echo

Regards!

...JRF...

[Soul_1]

Hi,

Its working fine...

can u tell me what "\b\c" will do ?

: )

Thanks in advance

[Steven Schweda]

> can u tell me what "\b\c" will do ?

man echo

[R.K. #]

Hi Soul,

>> can u tell me what "\b\c" will do ?
\c instructs command not to perform a carriage return after the out-put.
\b is for backspace

This is how the line will not change (\c) and the number will be over-written (\b).

[Soul_1]

Hi,


When it comes to two digits ...its not displaying properly.when it reached two digits its displaying in one line.


Thanks in advance.

[Steven Schweda]

> When it comes to two digits ...its not
> displaying properly. [...]

Yes, one backspace character will not move
the cursor back two places. You might try
using two backspace characters in that case.

Have you ever used a typewriter? The
concepts here are similar.


> I wrote one script to print the first 5
> numbers

If you describe the actual problem which you
are trying to solve, then you may get better
(more appropriate) answers. Otherwise, if
you're the only one who knows what the actual
problem is, then you may need to do some
thinking for yourself.

[Soul_1]

hi,

Please help me to print first 25 numbers.


Thanks & Regards

[Dennis Handly]

>When it comes to two digits

If the digits are at the beginning, you can use "\r" for a carriage return.

[R.K. #]

It is working after using \r
Little Interactive and edit as per Dennis:

# cat timer
#!/usr/bin/sh
echo "Enter a number for counting: \c"
read N
Value=1
while ((Value <= $N))
do
echo "${Value}\r\c" # use "r" here
sleep 1
((Value=Value+1))
done
echo


Thanks JRF and Dennis...a good learing for me as well :-)