Tare da m: Maimaita umarnin da ya gabata tare da !!

Alejandro (a.k.a KZKG^Gaara)

1 minti

Muna ci gaba da umarni masu ban sha'awa da amfani waɗanda a wasu lokuta muke manta amfani dasu, tare da kasancewarsu a fakaice a cikin tsarinmu. A wannan yanayin za mu yi amfani da ɗaya wanda zai ba mu damar yin wasa kaɗan tare da tarihinmu.

Bari mu dauki wani sauki misali, bude m kuma sanya:

$ nano /etc/sudoers

Za su iya fahimtar cewa ba za mu iya shirya fayil ɗin ba idan ba mu masu gudanarwa ba. Don haka bari muyi amfani da sudo, amma don kar a maimaita umarnin da muka sanya:

$ sudo !!

Kuma wannan zai maimaita:

$ sudo nano /etc/sudoers

Wato, umarni !! zai maimaita umarnin da muka gudu a baya a cikin tashar. Hakanan zamu iya aiwatar da wani umarni wanda baya san yawansa a cikin tarihi.

Bude tashar mota ka sanya:

$ history

A halin da nake ciki wani abu kamar wannan ya fito:

[lambar] 495 cd Desktop /
496 ls
497 wget -c http://cinnamon.linuxmint.com/tmp/blog/119/classic.png
498 cd
499 cvlc Music / Jamendo / The Patinettes \ - \ ni'ima \ - \ 2011.06.03 /
500 cvlc Music / Rock /
[/ lambar]

Idan na aiwatar da umarni !! an zartar da umarnin baya, wanda a wannan yanayin zai zama:

$ cvlc Música/Rock/

Amma idan kuna son aiwatar misali misali umarnin:

$ wget -c http://cinnamon.linuxmint.com/tmp/blog/119/classic.png

Ina kawai sa:

$ !497

497 shine lamba a gaban umarnin. Dama mai sauki?


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  1.   Mauricio m
    sa 12 shekaru

    Kai, ban san wannan ba, kyakkyawan bayani, godiya.

    Amsa wa Mauritius
  2.   mayan84 m
    sa 12 shekaru

    Wannan ya cece ni daga danna kibiyar sama | farawa. Godiya ga bayanin.

    Amsa zuwa sieg84
  3.   Maxwell m
    sa 12 shekaru

    Na ga yana da amfani sosai, wannan tare da Ctrl + R don binciken umarni yana sa gwaninta a cikin ttys ya zama mafi daɗi.

    Amsa wa Maxwell
  4.   Hugo m
    sa 12 shekaru

    Kullum ina amfani da wanda aka ce masa don tace:

    alias h='history | egrep -i'

    A zahiri, yanzu da nake tunani game da shi, wataƙila ya fi kyau a ƙara aiki kamar wannan ga .bashrc:

    h () {
    # Función para listar comandos del historial
    HISTERROR="Se puede utilizar como máximo un parámetro."
    if [ $# -eq 0 ] ; then
    history | less
    elsif [ $# -eq 1 ] ; then
    history | egrep -i $1 | less
    else
    echo $HISTERROR
    fi
    }

    Ta wannan hanyar, kawai amfani h don jera dukkan umarni a tarihi, ko h siga don lissafin umarnin da suka dace da ma'auni (wanda a hanya, yana ba da izinin maganganu na yau da kullun).

    Amsa wa Hugo
  5.   Lucas Matthias m
    sa 12 shekaru

    Ina amfani da kwatance. Sai na gwada shi.

    Amsa ga Lucas Matias