Check the execute permissions from the directory where you extracted the portable collector file.
Does the installation program have execute permission?
User Gretchen's home directory has neither read nor execute permission for the Gretchen group or other users, so user Ian cannot access it.
The second group indicates the read, write, and execute permissions for the file's group.
User Greg's home directory has read and execute permission for members of the development group, so users Tom and Ian can list the directory.
You can get to any directory at all-if you have permission (you need execute permission) -using its absolute path name.
Setting execute permission for everyone changed the mode to 755.
You may have noticed in the above example that execute permission was set for the owner, group, and others.
The first group indicates the read, write, and execute permissions for the file's owner.
The shared library does not have execute permissions for group or other.
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