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case (Unix)

A case a Unix shell beépített utasítása többirányú elágazás programozására. Alakja:

case szó in
    minta1|minta2...) utasítás1...
                ;;
    minta3|minta4...) utasítás2...
                ;;
    ...
esac

Az utasítás egymás után megpróbálja szó-t illeszteni a megadott mintákra. Ha valamelyik minta egyezik, annak utasításai hajtódnak végre ;;-ig. A mintaillesztés a fájlok wildcard-jával azonos módon történik.

Bővebben: bash

Külön default ág nincs, de a * minden szóra illeszkedik.

Példa:

read -p "Irj be egy sort! " SOR
echo A beirt sor: "$SOR"
case "$SOR" in
     .*) echo Ponttal kezdodo sor
        ;;
      ?) echo Egy betubol allo szo
        ;;
   *\ *) echo Helykoz van benne
        ;;
   *[0-9]*) echo Szamjegy van benne
        ;;
   *[A-Za-z]*) echo Betu van benne
        ;;
     "") echo Nem is irtal be semmit!
        ;;
      *)  echo Fogalmam sincs, mi ez
        ;;
esac

Források

[szerkesztés]
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case (Unix)
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