Linux, UNIX

keytool -importcert -keystore cacerts -file mycert.crt

Each triad first character r : readable second character w : writable third character x : executable s  or  t :  setuid / setgid  or  sticky  (also executable) S  or  T : setuid/setgid or sticky (not executable) In some permission systems additional symbols in the  ls -l   display represent additional permission features: + (plus) suffix indicates an access control list that can control additional permissions. . (dot) suffix indicates an  SELinux  context is present. Details may be listed with the command  ls -Z . @ suffix indicates  extended file attributes  are present.