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(sh-utils.info)Modified command invocation

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Modified command invocation
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   This section describes commands that run other commands in some
context different than the current one: a modified environment, as a
different user, etc.

chroot invocation

Modify the root directory.

env invocation

Modify environment variables.

nice invocation

Modify scheduling priority.

nohup invocation

Immunize to hangups.

su invocation

Modify user and group id.