Koj tuaj yeem tawm ib tsab ntawv ntawm txhua qhov chaw uas siv lo lus tseem ceeb tawm. Koj tuaj yeem hais qhia tus lej tawm txhawm rau txhawm rau qhia rau lwm cov kev pabcuam uas lossis koj tsab ntawv ua tsis tiav, piv txwv li tawm 1 lossis tawm 2 thiab lwm yam.
Yuav ua li cas koj tawm ib tsab ntawv?
Yog tias tsab ntawv xaus nrog kev tawm mus yam tsis tau qhia qhov ntsuas, tsab ntawv tawm code yog cov lus txib kawg ua tiav hauv tsab ntawv. Siv tsuas yog tawm yog tib yam li tawm $? los yog tshem tawm qhov tawm. Yog hais tias koj khiav tsab ntawv raws li hauv paus, qhov tawm code yuav yog xoom. Txwv tsis pub, tsab ntawv yuav tawm nrog xwm txheej 1 .
Yuav ua li cas kuv rhuav tshem ntawm ib tsab ntawv bash?
Koj tuaj yeem siv cov lus txib so kom tawm ntawm txhua lub voj, zoo li lub sijhawm thiab mus txog lub voj voog. Lub voj khiav mus txog rau 14 ces cov lus txib tawm ntawm lub voj. Cov lus txib tawm thaum lub voj voog, thiab qhov ntawd tshwm sim thaum qhov kev ua tiav mus txog yog nqe lus.
Dab tsi yog qhov txawv ntawm Exit 0 thiab Exit 1 hauv plhaub ntawv?
tawm (0) qhia tias qhov kev zov me nyuam raug kaw yam tsis muaj qhov yuam kev. tawm (1) qhia tias muaj qhov yuam kev. Koj tuaj yeem siv cov txiaj ntsig sib txawv uas tsis yog 1 kom sib txawv ntawm ntau hom kev ua yuam kev.
Yuav ua li cas koj tawm ib tsab ntawv yog hais kom ua tsis tau?
-e Tawm tam sim yog tias qhov kev hais kom tawm nrog qhov tsis yog xoom. Yog li yog tias ib qho ntawm koj cov lus txib ua tsis tiav, tsab ntawv yuav tawm. Koj tuaj yeem tawm ib tsab ntawv ntawm txhua qhov chaw siv lo lus tseem ceeb tawm . Koj tuaj yeem hais qhia tus lej tawm txhawm rau txhawm rau qhia rau lwm cov kev pabcuam uas lossis koj tsab ntawv ua tsis tiav, xws li tawm 1 lossis tawm 2 thiab lwm yam.
Kuv yuav khiav ib tsab ntawv hauv Linux li cas?
Cov kauj ruam sau thiab ua tiav ib tsab ntawv
- Qhib cov davhlau ya nyob twg. Mus rau hauv cov ntawv qhia chaw uas koj xav tsim koj tsab ntawv.
- Tsim daim ntawv nrog. sh ncua ntxiv.
- Sau cov ntawv nyob rau hauv cov ntaub ntawv siv tus editor.
- Ua cov ntawv ua tiav nrog cov lus txib chmod + x .
- Khiav cov ntawv siv ./ .
Yuav ua li cas koj tua ib tug tiag tiag voj?
Nias Ctrl + C kom tua.
Cov lus txib twg yog siv los rhuav tshem cov ntaub ntawv thaiv?
break hais kom ua yog siv los txiav txim rau lub voj, thaum lub voj thiab mus txog rau lub voj. Nws tuaj yeem siv ib qho parameter ie [N]. Ntawm no n yog tus naj npawb ntawm nested loops tawg.
Exit 1 yog dab tsi hauv plhaub ntawv?
Peb sau "tawm 1" hauv plhaub tsab ntawv thaum peb xav kom paub tseeb tias peb tsab ntawv tawm mus ua tiav lossis tsis tau. Txhua tsab ntawv lossis cov lus txib hauv linux rov qab tawm cov xwm txheej uas tuaj yeem nug tau siv cov lus txib "echo $?".
Exit command yog dab tsi hauv Linux?
tawm hais kom ua hauv linux yog siv los tawm ntawm lub plhaub uas nws tab tom khiav tam sim no. Nws yuav siv ib qho ntxiv parameter li [N] thiab tawm ntawm lub plhaub nrog qhov rov qab ntawm cov xwm txheej N. Yog tias n tsis muab, ces nws tsuas yog rov qab cov xwm txheej ntawm cov lus txib kawg uas tau ua tiav. Syntax: exit [n]
Vim li cas Exit 0 yog siv hauv plhaub ntawv?
Nrog bash commands rov qab code 0 feem ntau txhais tau hais tias txhua yam ua tiav yam tsis muaj qhov yuam kev. tawm kuj ua rau koj tsab ntawv nres ua tiav ntawm qhov ntawd thiab rov qab mus rau kab hais kom ua.
Yuav ua li cas koj tawm ib tsab ntawv hauv Unix?
Txhawm rau xaus daim ntawv plhaub thiab teeb tsa nws txoj kev tawm, siv cov lus txib tawm. Muab tawm qhov kev tawm uas koj tsab ntawv yuav tsum muaj. Yog tias nws tsis muaj xwm txheej meej, nws yuav tawm nrog cov xwm txheej ntawm cov lus txib kawg khiav.
Kuv yuav tawm bash tsab ntawv yuam kev li cas?
Qhov no tuaj yeem ua tiav nrog ib txoj kab uas siv cov teeb tsa builtin nrog cov kev xaiv -e. Muab qhov no tso rau sab saum toj ntawm tsab ntawv bash yuav ua rau tsab ntawv tawm yog tias cov lus txib rov qab tsis yog xoom tawm code.
Koj yuav ua li cas yog tias lwm tus hauv bash?
Yog tias TEST-COMMAND ntsuas qhov tseeb, cov lus qhia 1 yuav raug ua tiav. Txwv tsis pub, yog TEST-COMMAND rov qab False, STATEMENTS2 yuav raug tua. Koj tuaj yeem muaj tsuas yog lwm nqe lus hauv nqe lus.