![]() ![]() ![]() It's possible for a file to be setuid but not executable this is denoted by S, where the capital S alerts you that this setting is probably wrong because the setuid bit is (almost always) useless if the file is not executable. When an executable is setuid, it runs as the user who owns the executable file instead of the user who invoked The letter s denotes that the setuid (or setgid, depending on the column) bit is set. On Linux, look up the Info documentation ( info ls) or online. ![]() On most unix variants, look up the ls man page ( man ls or online). The documentation of the ls command answers these questions. ![]()
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