Become Become project changes the current effective, or real, user and group identity to those specified on the command line.
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group UID group identity change identity change uid gid

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Become project changes the current effective, or real, user and group identity to those specified on the command line. Become project changes the current effective, or real, user and group identity to those specified on the command line. The default shell (/bin/sh) is then executed.UID and GID are specified numerically and do not have to be currently defined on the system.Usage:become Options-cClear supplementary groups.-hDisplay usage information.-rSet real IDs instead of effective IDs.-vIncrease verbosity.ExamplesBy default become only changes the effective IDs and leaves any supplemental groups unchanged as shown in the following example:> become 666:666euid=666, uid=0, egid=666, gid=0$ iduid=0(root) euid=666 gid=0(wheel) egid=666 groups=666, 0(wheel)Supplementary groups are cleared when the "-c" option is used: > become -c 123:123euid=123, uid=0, egid=123, gid=0$ iduid=0(root) euid=123 gid=0(wheel) egid=123 groups=123When the "-r" option is used become effects real IDs rather than effective IDs: > become -r 626:3203euid=626, uid=626, egid=3203, gid=3203$ iduid=626 gid=3203 groups=3203, 0(wheel)

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