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Need help regarding sending sleep to background

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Top Forums Shell Programming and Scripting Need help regarding sending sleep to background
# 1  
Old 01-05-2012
Need help regarding sending sleep to background
Hi,
can we print anything, when sleep is running..?
like printing dots(.. . . . . . . . .) to indicate that some process is going on...?


i mean, can we send sleep to background, proceed with printing, till sleep is going on... in s single step.

I have written a funtion to solve this.
Quote:
function sleep_time() {
C=1
while [[ $C -lt $1 ]];
do
echo -n "."
sleep 0.25
C=$C+1
 done
}
sleep_time 100


or directly,
Quote:
#!/usr/bin/ksh
echo "hello here"
(sleep 25)&
pid=$!
while [[ `ps | grep "$pid" | grep -v grep` ]]
do
echo -n ". "
sleep 0.15
done


but cant we do that in a single command, instead of using this much of code.
Help me regarding this.

# 2  
Old 01-05-2012
Quote:
while [[ `ps | grep "$pid" | grep -v grep` ]]
Apart from being a syntax error in ksh, this line can be replaced with the correct command to find out whether you have background processes running (the "jobs" command):
Code:
while [ "`jobs`" ]

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