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Print the first four characters of hostname

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# 8  
Old 06-15-2009
Originally Posted by yxian
I'm trying to print the first four characters of the hostname of a computer.

I can get it from using:
hostname -s | sed 's/...........$//'"

but this is when I know how many characters are in the computer name.

Though longer than some other solutions, this will be much faster because it doesn't use any external commands other than hostname:

echo ${hostname%"$temp"}

But it is also possible that your shell already has the output of hostname in the variable $HOSTNAME (bash does), and you don't need any external command:

echo ${HOSTNAME%"$temp"}

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