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What is the meaning of $_


 
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# 1  
Old 01-05-2010
What is the meaning of $_

Hi,

Can somebody tell the usage of "$_"

cd $_ ?

and ls $_ ?
# 2  
Old 01-05-2010
my bash tell me $_=clear

you can use to clear screen
# 3  
Old 01-05-2010
use ksh...

imp catch...

cd /tmp
cd /etc
ls <dir> ---> some directory
cd $_ -- ?

what will be "pwd" and how ?
# 4  
Old 01-05-2010
does this help you
# 5  
Old 01-05-2010
$_ :- Is a Special variable set to last argument of previous command executed.

Examples:-

Code:
#!/bin/bash
echo $_              # /bin/bash
                         # Just called /bin/bash to run the script.
du >/dev/null        # So no output from command.
echo $_              # du
ls -al >/dev/null    # So no output from command.
echo $_              # -al  (last argument)
:
echo $_              # :


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