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Document cross-product

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At least in tutorial for now.

Fixes #2341
This commit is contained in:
Fabian Homborg 2015-09-15 17:04:49 +02:00
parent 31c75e747c
commit a02d4dc27c
1 changed files with 7 additions and 0 deletions
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7
doc_src/tutorial.hdr
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@ -348,6 +348,13 @@ You can iterate over a list (or a slice) with a for loop:
<outp>entry: /usr/local/bin</outp> <outp>entry: /usr/local/bin</outp>
\endfish \endfish
If you append a list to a string (or to a list), it will build the cross-product:
\fish{cli-dark}
>_ set -l a 1 2 3
>_ set -l 1 a b c
>_ echo $a$1
<outp>1a 2a 3a 1b 2b 3b 1c 2c 3c
\endfish
\section tut_command_substitutions Command Substitutions \section tut_command_substitutions Command Substitutions