How to determine which unix shell I am using?

Question

Is there a simple way by which I can determine what type of unix shell I am in ie, am I in bash / csh / ksh / tcsh ?

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linux unix shell

RHT Jul 28 '10 at 1:58

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5 answers

 mac:~$ ps PID TTY TIME CMD 223 ttys000 0:00.33 -bash obsd:~$ ps PID TT STAT TIME COMMAND 20038 p0 Ss 0:00.01 -ksh (ksh) 22251 p0 R+ 0:00.00 ps

Or just echo $SHELL

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Nikolai Fetissov Jul 28 '10 at 2:01

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The echo $SHELL command will give you the name of your shell relative to root.

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a.saurabh Mar 20 '13 at 4:16

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Each wrapper I know sets $ variable ($$) in its pid. So that...

 ps | grep $$

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pra Aug 03 '10 at 18:14

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If you use an OSx terminal, then the shell is indicated in the terminal title bar when it starts - for example: Terminal - ShellName - 80x24

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Alex Dec 01 '11 at 19:15

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ggg · Accepted Answer · 2010-07-28 02:10

Try:

 echo $0

This often works in different shells.