UNIX for Dummies Questions & Answers

Hi all,

how do we find where perl is installed via command line?

Please let me know for both windows and unix platforms.

when i tried in windows by following option. it is throwing error.

C:\Users\dkanagar>whereis perl
'whereis' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\dkanagar>whence perl
'whence' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\dkanagar>which perl
'which' is not recognized as an internal or external command,
operable program or batch file.

Thanks & Regards,
Divakar

Hi,

on linux platforms you can try (as root):
# updatedb

then as your user:
$ locate perl

warning, this command can return a lot of lines, so you'd better pipe the output to 'more'.

One of the usual installation path may be something like /usr/bin/perl, let's assume this is the case for you from now on.

To check if the command 'perl' in the path '/usr/bin' is actually the perl executable, you can try the following command:
$ /usr/bin/perl -e 'print join "\n", @INC'
if the path is correct, you should see in output the list of perl modules currently installed.

Once you have identified the correct path, you can add it to your user's PATH (i.e. if you're using bash shell, edit your .bash_profile and add the path /usr/bin to PATH, like: PATH=$PATH:/usr/bin).

see ya
fra

Hi,

bash-3.00$ locate
bash: locate: command not found

$ echo $SHELL
/bin/sh
$ locate
locate: not found.

$ which perl
/bin/perl

$ whereis perl
perl: /usr/bin/perl /usr/man/man1/perl.1

couldnt fine locate command. but i could find the path by using the above commands in unix.

in windows how do we find like above?

Thanks & Regards,
Divakar

This forum is not a Windows forum. Having said that, typically the Perl executable should be on the Path environmental variable. Type PATH to see the Path.

On UNIX systems sometimes the Path is set in the .profile file in your home directory, and runs anytime you log in. Check your .profile (it is hidden so you will not be able to see it with ls) just navigate to your home directory "cd ~" (without quotes) and type "cat .profile" (also without quotes). There may be a small script that sets the path.