| 1 | ---
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| 2 | in_progress: yes
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| 3 | ---
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| 4 | 
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| 5 | Process Model
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| 6 | =============
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| 7 | 
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| 8 | Related: [Interpreter State](interpreter-state.html).  These two docs are the
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| 9 | missing documentation for shell!
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| 10 | 
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| 11 | 
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| 12 | <div id="toc">
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| 13 | </div>
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| 14 | 
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| 15 | ## Constructs
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| 16 | 
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| 17 | 
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| 18 | ### Pipelines
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| 19 | 
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| 20 | - `shopt -s lastpipe`
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| 21 | 
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| 22 | ### Functions Can Be Transparently Put in Pipelines
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| 23 | 
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| 24 | 
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| 25 | ### Explicit Subshells are Rarely Needed
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| 26 | 
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| 27 | - prefer `pushd` / `popd`, or `cd { }` in YSH.
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| 28 | 
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| 29 | ### Redirects
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| 30 | 
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| 31 | 
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| 32 | ### Other
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| 33 | 
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| 34 | - xargs, xargs -P
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| 35 | - find -exec
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| 36 | 
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| 37 | <!-- See [Unix Tools] on the wiki. -->
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| 38 | 
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| 39 | ## Builtins
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| 40 | 
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| 41 | ### [wait]($help)
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| 42 | 
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| 43 | ### [fg]($help)
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| 44 | 
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| 45 | ### [bg]($help)
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| 46 | 
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| 47 | ### [trap]($help)
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| 48 | 
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| 49 | 
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| 50 | 
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