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wwwnick
 wwwnick      07.11.2006 - 08:11:39 , level: 1, UP   NEW
hm, zajimavy zapis toho ifu, vidim takovy podruhe v zivote, nenasel by se nekdo kdo umi oduvodnit proc to tak napsal?

(jde mi tam o to 'x' pred nazvem promenne a pak znova pred tou nulou)
jeden cas se na toto tema flamovalo v linux.cz konfere ale nemuzu to najit...

love is just an illusion

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pyxel
 pyxel      07.11.2006 - 10:00:42 , level: 2, UP   NEW
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

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wwwnick
 wwwnick      07.11.2006 - 14:35:18 , level: 3, UP   NEW
tak reknu rovnou ze je to kvuli ostatnim shellum (navic s tim tvojim if si treba ksh neporadi)

love is just an illusion

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terorrist
 terorrist      07.11.2006 - 12:54:58 , level: 3, UP   NEW
:) pyxel ty uz aj programujes? tamtie utility su dost krute.

exm