Why can't I run Nios® II Software Build Tools (SBT) Eclipse in Intel® Quartus® Prime Pro Edition 20.1?

Due to an issue with directory and file permissions, users will encounter a Permission denied error when running Nios® II SBT Eclipse (eclipse-nios2 command) from the Nios II Command Shell .

To allow other users to access Nios® II SBT Eclipse run the following commands to set the correct permissions before installing Eclipse  Nios® II plugins:

• export CWD=/nios2eds/bin                                                                      #setting an environment variable $cwd for the current working directory
• mkdir $CWD/temp_dir                                                                              #creating a temporary directory for changing file permissions
• tar xf $CWD/eclipse_nios2_plugins.tar.gz -C $CWD/temp_dir          #un-archive to the temporary directory
• chmod g rwx,o rx $(find $CWD/temp_dir/eclipse_nios2 -type d)    #updating correct permission bits for directories
• chmod g rw,o r $(find $CWD/temp_dir/eclipse_nios2 -type f)          #updating correct permission bits for files
• cp -rpf $CWD/temp_dir/eclipse_nios2 $CWD                                         #overwrite with the updated eclipse_nios2 folder
• rm -rf $CWD/temp_dir                                                                               #remove temporary directory
• unset CWD                                                                                                   #un-setting the environment variable