Ecopath For Mac

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need to add dev tools (such as JDK and friends) to my PATH. How do I change $PATH variable in OS X 10.8.x? Where does $PATH get set in OS X 10.8 Mountain Lion?
$PATH is nothing but an environment variable on Linux, OS X, Unix-like operating systems, and Microsoft Windows. You can specify a set of directories where executable programs are located using $PATH. The $PATH variable is specified as a list of directory names separated by colon (:) characters. To print the current settings, open the Terminal and then type:


Sample outputs:


OS X: Change your PATH environment variable

You can add path to any one of the following method:

  1. $HOME/.bash_profile file using export syntax.
  2. /etc/paths.d directory.

Method #1: $HOME/.bash_profile file

The syntax is as follows:

In this example, add /usr/local/sbin/modemZapp/ directory to $PATH variable. Edit the file $HOME/.bash_profile, enter:
vi $HOME/.bash_profile
vi ~/.bash_profile
Append the following export command:

Save and close the file. To apply changes immedialty enter:
source $HOME/.bash_profile
. $HOME/.bash_profile
Finally, verify your new path settings, enter:
echo $PATH
Sample outputs:

Method #2: /etc/paths.d directory

Apple recommends the path_helper tool to generate the PATH variable i.e. helper for constructing PATH environment variable. From the man page:

The path_helper utility reads the contents of the files in the directories /etc/paths.d and /etc/manpaths.d and appends their contents to the PATH and MANPATH environment variables respectively.

(The MANPATH environment variable will not be modified unless it is already set in the environment.)

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Files in these directories should contain one path element per line.

Prior to reading these directories, default PATH and MANPATH values are obtained from the files /etc/paths and /etc/manpaths respectively.

To list existing path, enter:
ls -l /etc/paths.d/
Sample outputs:

You can use the cat command to see path settings in 40-XQuartz:
cat /etc/paths.d/40-XQuartz
Sample outputs:

To set /usr/local/sbin/modemZapp to $PATH, enter:

OR use vi text editor as follows to create /etc/paths.d/zmodemapp file:
sudo vi /etc/paths.d/zmodemapp
and append the following text:

Save and close the file. You need to reboot the system. Alternatively, you can close and reopen the Terminal app to see new $PATH changes.


  1. Use $HOME/.bash_profile file when you need to generate the PATH variable for a single user account.
  2. Use /etc/paths.d/ directory via the path_helper tool to generate the PATH variable for all user accounts on the system. This method only works on OS X Leopard and higher.
See also:
  • Customize the bash shell environments from the Linux shell scripting wiki.
  • Man pages – bash(1), path_helper(8)


Ecopath with Ecosim is a free and reliable software suite designed for ecosystem/ecological modeling. The application integrates three major components: Ecosim - a a dynamic simulation tool for policy exploration; Ecopath - a static snapshot of the system; and Ecospace - a temporal and spatial module aimed at studying the placement and impact of protected areas.
Ecopath with Ecosim can be used to evaluate the effects of fishing on the ecosystem, view the effects of environmental modifications, address ecological questions, study the placement and impact of marine protected areas, view management policy options, predict accumulation and movement of tracers and contaminants, and much more.


  • The application offers several powerful features.
  • The utility is simple, free and light on system resources.
NameEcopath with Ecosim
DeveloperUBC Fisheries Centre see all products from this developer
Product HomepageEcopath with Ecosim
LicenseFree (Freeware)
Last Week Downloads6
All Time Downloads973
MD5 ChecksumAC847A2242FCC3AB6BB10C1622A73DCE
OS SupportWindows All
CategoryHome & Education

100% CLEAN Certification

Ecopath with Ecosim has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


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Old Versions

SoftwareDate Added
Ecopath with Ecosim 6.5March 26, 2018 - Latest Version
Ecopath with Ecosim 6.4.3March 06, 2015
Ecopath with Ecosim 21, 2012