grep thiab egrep ua haujlwm zoo ib yam, tab sis txoj kev uas lawv txhais tus qauv yog qhov txawv xwb. Grep stands rau "Ntiaj teb cov lus hais tsis tu ncua", yog li Egrep rau "Nthuav thoob ntiaj teb kev nthuav qhia luam tawm". … Cov lus txib grep yuav xyuas seb puas muaj cov ntaub ntawv nrog.
Qhov twg nrawm dua grep lossis egrep?
Note: Cov lus txib egrep siv feem ntau vim qhov tseeb tias nws nrawm dua li cov lus txib grep. Cov lus txib egrep kho cov cim cim raws li lawv thiab tsis tas yuav tsum tau khiav tawm raws li qhov xwm txheej nrog grep. … Kev xaiv: Feem ntau ntawm cov kev xaiv rau cov lus txib no yog tib yam li grep.
Puas yog egrep deprecated?
egrep yog tsis yog tus qauv thiab tsis lees paub. Siv grep -E hloov. fgrep tsis yog tus qauv thiab tsis lees paub.
Puas yog grep tib yam li regex?
Hauv kev taw qhia, koj tau kawm tias grep sawv cev rau "thoob ntiaj teb kev qhia tawm". Ib "hais lus tsis tu ncua" yog ib txoj kab ntawv uas piav txog ib qho kev tshawb nrhiav.
qhov txawv ntawm grep thiab fgrep yog dab tsi?
The grep lim nrhiav ib cov ntaub ntawv rau cov qauv tshwj xeeb ntawm cov cim thiab qhia txhua kab uas muaj cov qauv ntawd. Lub lim fgrep tshawb nrhiav cov kab cim ruaj khov hauv cov ntaub ntawv lossis cov ntaub ntawv.
