46 lines
665 B
Org Mode
46 lines
665 B
Org Mode
:PROPERTIES:
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:ID: 72eb2d10-5b92-4fb7-9e4e-1398bd933335
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:mtime: 20220130133646
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:ctime: 20220130131134
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:END:
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#+title: bash
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* Installation
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#+BEGIN_SRC shell
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apt-get install bash
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#+END_SRC
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* Tips
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** Initialiser une variable non intialisée ou null
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#+BEGIN_SRC shell :output dispay
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a=
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c='AAA'
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${a:='coucou'}
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${b:=123}
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${c:='coucou'}
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echo "a=${a}"
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echo "b=${b}"
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echo "c=${c}"
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#+END_SRC
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#+RESULTS:
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| a=coucou |
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| b=123 |
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| c=AAA |
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** Initialiser une variable non initialisée
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#+BEGIN_SRC shell :output dispay
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a=
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c='AAA'
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${a='coucou'}
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${b=123}
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${c='coucou'}
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echo "a=${a}"
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echo "b=${b}"
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echo "c=${c}"
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#+END_SRC
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#+RESULTS:
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| a= |
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| b=123 |
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| c=AAA |
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