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Process Model

Related: Interpreter State. These two docs are the missing documentation for shell!

Constructs

Pipelines

• shopt -s lastpipe

Functions Can Be Transparently Put in Pipelines

Explicit Subshells are Rarely Needed

• prefer pushd / popd, or cd { } in Oil.

Redirects

Other

• xargs, xargs -P
• find -exec

Builtins

wait

fg

bg

trap