# the cryosparc user creates a bunch of files
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file1
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file2
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file3
# alice logs in, and also creates a file in that directory
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file1
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file2
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file3
-rw-rw-r-- 1 alice cryosparc 0 Jun 18 17:06 file4
# notice how the file alice made is owned by the cryosparc group.
# now tom can log in and is able to modify the files created by...
# ... both alice and cyosparc
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file1
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file3
-rw-rw-r-- 1 tom cryosparc 0 Jun 18 17:07 file
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file1
-rw-rw-r-- 1 cryosparc cryosparc 0 Jun 18 17:05 file3