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Full Discussion: Is there any $PATH default setting?
Top Forums UNIX for Dummies Questions & Answers Is there any $PATH default setting? Post 302699473 by yifangt on Tuesday 11th of September 2012 07:01:24 PM
Old 09-11-2012
Is there any $PATH default setting?
This is a very newbie's question:
I was trying to add a new version of the same command "blastn", but the old command always shows up first.
Code:
which blastn
/usr/local/bin/blastn

The two versions of the same command "blastn" are located in:
Code:
which -a blastn
/usr/local/bin/blastn
/home/yifangt/download-software/bin/blastn

What I want is the one in my home directory "/home/yifangt/download-software/bin" .
I had specified the second one in my .bashrc file (and .bash_profile)
Code:
export PATH=$PATH:/home/yifangt/download-software/bin

How can get rid of the "/usr/local/bin/blastn" without removing the whole directory?
I can't remove the blastn in "/usr/local/bin" because it is preferred by other people, and many other commands sit in that directory too.
I had thought the my local .bashrc will overwrite the old $PATH so that "/home/yifangt/blastn" should be the one I use. Did I miss anything?
Thanks a lot!
 

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LEARN ABOUT LINUX

systemd-path

SYSTEMD-PATH(1) 						   systemd-path 						   SYSTEMD-PATH(1)

NAME

       systemd-path - List and query system and user paths

SYNOPSIS

       systemd-path [OPTIONS...] [NAME...]

DESCRIPTION

       systemd-path may be used to query system and user paths. The tool makes many of the paths described in file-hierarchy(7) available for
       querying.

       When invoked without arguments, a list of known paths and their current values is shown. When at least one argument is passed, the path
       with this name is queried and its value shown. The variables whose name begins with "search-" do not refer to individual paths, but instead
       to a list of colon-separated search paths, in their order of precedence.

OPTIONS

       The following options are understood:

       --suffix=
	   The printed paths are suffixed by the specified string.

       -h, --help
	   Print a short help text and exit.

       --version
	   Print a short version string and exit.

EXIT STATUS

       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO

       systemd(1), file-hierarchy(7)

systemd 237															   SYSTEMD-PATH(1)
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