OS Manuals

/usr/bin/su

Kerberos su from heimdal

From heimdal-su 7.8.0-r55 (os), captured 2026-11-05 by running su --help (exit 0). permalink

Usage: su [-Kflmh] [--no-kerberos] [--full] [--instance=string] [-i string] [--command=string]
   [-c string] [--help] [--version] [login [shell arguments]]
-K, --no-kerberos            don't use kerberos
-f                           don't read .cshrc
-l, --full                   simulate full login
-m                           leave environment unmodified
-i string, --instance=string root instance to use
-c string, --command=string  command to execute
Options (5)
OptionDescriptionSource
-K, --no-kerberosdon't use kerberoshelp
-fdon't read .cshrchelp
-l, --fullsimulate full loginhelp
-mleave environment unmodifiedhelp
-c, --command stringcommand to executehelp

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.