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| node: | takto |
| template: | 4 |
| parent: | Re: 07.11.2006-8:04:18 |
| owner: | pyxel |
| viewed by: | |
| created: | 07.11.2006 - 10:00:42 |
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cwbe coordinatez: 101 792011 1703701 2739299 2739305 2739468 ABSOLUT KYBERIA |
| permissions | |
| you: | r, |
| system: | public |
| net: | yes |
total descendants::
total children::3
pouziva sa to v sktratke na oebanie tohoto paradoxneho erroru:
~> export meno=honzo
~> if [ $meno == honzo ]; then echo dobre; fi
dobre
~> export meno=
~> if [ $meno == honzo ]; then echo dobre; fi
bash: [: ==: unary operator expected
~>
~> if [ x"$meno" == "xhonzo" ]; then echo dobre; fi
~>
teda ako vidis, ak je value ktoru porovnavas prazdna (ale setnuta je) tak ti to vyhodi ten error
~> export meno=honzo
~> if [ $meno == honzo ]; then echo dobre; fi
dobre
~> export meno=
~> if [ $meno == honzo ]; then echo dobre; fi
bash: [: ==: unary operator expected
~>
~> if [ x"$meno" == "xhonzo" ]; then echo dobre; fi
~>
teda ako vidis, ak je value ktoru porovnavas prazdna (ale setnuta je) tak ti to vyhodi ten error