Umlindo we- Linux umlayezo uqhuba umyalelo ngokuphindaphindiweyo, ukubonisa imveliso yayo (yokuqala ebonakalayo). Oku kukuvumela ukuba ubukele inkqubo yokutshintsha kwithuba. Ngokungagqibekanga, inkqubo iyaqhutywa imizuzwana emibili; sebenzisa -n okanye -kukhawuleza ukuchaza ixesha elihlukile.
I-- d okanye iifayile zenkcazo ziza kugxininisa umahluko phakathi kokuhlaziywa okulandelelanayo. Ikhetho lokuhlengahlengisa lenza ukuba kugqitywe "okunamathelekileyo", ukubonisa isibonakaliso sokusebenza kuzo zonke izikhundla eziye zatshintsha.
Ukubukela kuza kuqhutyelwa kude kuphazamiseke.
Umxholo we-Linux Watch Command
jonga [-dhv] [-n
Phawula
Qaphela ukuba umyalelo unikezwa "sh -c" oku kuthetha ukuba unokufuna ukucaphula ngokukhawuleza ukuze ufumane umphumo oyifunayo.
Qaphela ukuba ukusetyenziswa kwe-POSIX kusetyenziswa (oko kukuthi, ukukhethwa kokukhetha okukhethiweyo kwimpikiswano yokuqala engakhethi). Oku kuthetha ukuba iiflegi emva komyalelo ayifumanisi ngokuzibukela ngokwawo.
Imizekelo ye-Linux Watch Command
Ukubukela ngeposi, unokuyenza:
jonga-60 ukusuka
Ukubukela okubhalwe kwenguqu yenguqu, ungasebenzisa:
jonga -d ls -l
Ukuba unomdla kuphela kwiifayile ezingumsebenzisi joe, ungasebenzisa:
jonga -d 'ls -l | fgrep joe '
Ukubona imiphumo yokucaphula, zama ezi zilandelayo:
ubukele i-echo $$
jonga echo '$$'
jonga i-echo "'"' $$ '"'"
Kubalulekile: Sebenzisa umyalelo womntu ( % umntu ) ukubona indlela umyalelo usetyenziswa ngayo kwiikhomputha yakho ethile.