Vim li cas siv plhaub scripting?
Vim li cas siv plhaub scripting?

Video: Vim li cas siv plhaub scripting?

Video: Vim li cas siv plhaub scripting?
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Anonim

Plhaub scripts tso cai rau peb ua cov lus txib hauv chains thiab muaj lub kaw lus ua haujlwm raws li qhov xwm txheej sau tseg, ib yam li cov ntaub ntawv batch. Lawv kuj tso cai rau cov haujlwm muaj txiaj ntsig ntau dua, xws li kev hloov pauv lus txib. Koj tuaj yeem hu rau ib qho kev hais kom ua, xws li hnub tim, thiab siv nws cov khoom tso tawm ua ib feem ntawm cov txheej txheem sau npe.

Yog li ntawd, dab tsi yog qhov zoo ntawm kev siv plhaub ntawv?

Qhov ntau qhov zoo suav nrog cov kev pab cuam yooj yim lossis xaiv cov ntaub ntawv, pib sai, thiab sib tham sib debugging. A plhaub ntawv tuaj yeem siv los muab kev sib txuas ua ke thiab kev txiav txim siab nyob ib puag ncig cov kev pabcuam uas twb muaj lawm, thiab rau qhov loj me me ntawv qhov tsis muaj cov kauj ruam muab tso ua ke yog ib qho qhov zoo.

Ib yam li ntawd, $ yog dab tsi? Hauv plhaub scripting? $# Khaws cov naj npawb ntawm cov kab lus sib cav uas tau dhau mus rau plhaub qhov kev pab cuam. $? Khaws tus nqi tawm ntawm cov lus txib kawg uas tau ua tiav. $0 Khaws thawj lo lus ntawm cov lus txib nkag (lub npe ntawm plhaub program). Yog li qhov yooj yim, $ # yog ntau qhov kev sib cav muab thaum koj tsab ntawv raug tua.

Kuj Paub, dab tsi yog lub plhaub ntawv thiab vim li cas nws thiaj li yuav tsum tau?

A plhaub ntawv yog cov ntawv nyeem uas muaj cov kab ke ntawm cov lus txib rau a UNIX -based operating system. A plhaub ntawv feem ntau yog tsim rau lus txib sequences uas tus neeg siv muaj a xav tau siv ntau zaus kom txuag tau sijhawm.

Kuv tuaj yeem kawm shell scripting li cas?

  1. Tsim cov ntaub ntawv siv vi editor (lossis lwm tus editor). Lub npe ntawv sau nrog extension.sh.
  2. Pib cov ntawv nrog #! /bin/sh.
  3. Sau qee tus lej.
  4. Txuag cov ntawv sau ua filename.sh.
  5. Rau kev ua tiav tsab ntawv hom bash filename.sh.

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