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62 lines, 59 significant
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2 Builtin Commands <a class="group-link" href="chap-builtin-cmd.html">builtin-cmd</a>
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5 [Memory] cmd/append Add elements to end of array
6 pp asdl cell X gc-stats line proc
7 [Handle Errors] error error 'failed' (status=2)
8 try Run with errexit, set _error
9 failed Test if _error.code !== 0
10 boolstatus Enforce 0 or 1 exit status
11 [Shell State] ysh-cd ysh-shopt compatible, and takes a block
12 shvar Temporary modify global settings
13 ctx Share and update a temporary "context"
14 push-registers Save registers like $?, PIPESTATUS
15 [Modules] runproc Run a proc; use as main entry point
16 module guard against duplicate 'source'
17 is-main false when sourcing a file
18 use change first word lookup
19 [I/O] ysh-read flags --all, -0
20 ysh-echo no -e -n with simple_echo
21 write Like echo, with --, --sep, --end
22 fork forkwait Replace & and (), and takes a block
23 fopen Open multiple streams, takes a block
24 X dbg Only thing that can be used in funcs
25 X log X die Common functions (polyfill)
26 [Hay Config] hay haynode For DSLs and config files
27 [Completion] compadjust compexport
28 [Data Formats] json read write
29 json8 read write
30X [Lines] slurp-by combine adjacent lines into cells
31X [Awk] each-line --j8 --max-jobs (Str, Template, Block) - xargs
32 each-row --max-jobs (Str, Template, Block) - xargs
33 split-by (str=\n, ifs=':', pattern=/s+/)
34 if-split-by
35 chop alias for split-by (pattern=/s+/)
36 must-match (/ <capture d+> </capture w+> /)
37 if-match
38X [Table Create] table --by-row --by-col (&place); construct/parse a table
39 table/cols cols name age - cols name:Str age:Int
40 types type Str Int
41 attr attr units - secs
42 row emit row
43 table cat concatenate TSV8
44 table align to ssv8
45 table tabify to tsv8
46 table header (cols = :|name age|, types = :|Str Int|, units = :|- secs|)
47 table slice e.g. slice (1, -1) slice (5, 7)
48 table to-tsv lose type info, and error on \t in cells
49X [Table Ops] where subset of rows; dplyr filter()
50 pick subset of columns ('select' taken by shell)
51 mutate transmute [average = count / sum] - drop the ones that are used?
52 rename (bytes='bytes', path='filename')
53 group-by add a column with a group ID [ext]
54 sort-by sort by columns; dplyr arrange() [ext]
55 summary count, sum, histogram, any, all, reduce(), etc. [ext]
56 [Args Parser] parser Parse command line arguments
57 flag
58 arg
59 rest
60 parseArgs()
61X [Testing] describe Test harness
62 assert takes an expression