Nohup, short for no hang up is a command in Linux systems that keep processes running even after exiting the shell or terminal. Nohup prevents the processes or jobs from receiving the SIGHUP (Signal Hang UP) signal. This is a signal that is sent to a process upon closing or exiting the terminal.
What is the use of nohup command in Linux?
I-nohup imele ukungaxhonywa, yinto eluncedo yeLinux leyo igcina iinkqubo ziqhuba nasemva kokuphuma kwi-terminal okanye iqokobhe. Ikhusela iinkqubo ekufumaneni iimpawu ze-SIGHUP (Umqondiso uxhoma); le miqondiso ithunyelwa kwinkqubo ukuphelisa okanye ukuphelisa inkqubo.
Kutheni sifuna i-nohup?
Xa usebenzisa idatha enkulu evela ngaphandle kwinginginya ekude, umzekelo, unokufuna ukusebenzisa i-nohup ku qinisekisa ukuba ukuqhawuka koqhagamshelwano akusayi kukwenza ukuba uqale phantsi xa uqhagamshela kwakhona. Ikwasetyenziswa xa umphuhlisi engayisebenzisi ngokufanelekileyo inkonzo, ke kuya kufuneka usebenzise i-nohup ukuqinisekisa ukuba ayibulawanga xa uphuma.
How do I run a nohup command?
Ukwenza umyalelo we-nohup ngasemva, yongeza i & (ampersand) ekupheleni komyalelo. Ukuba imposiso eqhelekileyo ibonisiwe kwi-terminal kwaye ukuba imveliso esemgangathweni ayiboniswanga kwi-terminal, okanye ithunyelwe kwifayile yemveliso echazwe ngumsebenzisi (ifayile yemveliso engagqibekanga ithi nohup. out), zombini ./nohup.
Ndisiqhuba njani iskripthi se-nohup kwiLinux?
nohup umyalelo wesintaksi:
Igama-lomyalelo : ligama leskripthi seqokobhe okanye igama lomyalelo. Ungadlula ingxabano kumyalelo okanye iqokobhe elishicilelweyo. & : nohup ayibeki ngokuzenzekelayo umyalelo osebenza ngasemva; kufuneka uyenze loo nto ngokucacileyo, ngo ukuphelisa ilayini yomyalelo nge & nesimboli.
Yintoni umahluko phakathi kwe nohup kunye &?
nohup ubamba umqondiso hangup (bona umqondiso wendoda yesi-7 ) ngelixa i-ampersand ingenzi (ngaphandle kokuba iqokobhe lilungiswe ngaloo ndlela okanye alithumeli i-SIGHUP kwaphela). Ngesiqhelo, xa usebenzisa umyalelo usebenzisa & kwaye ukhupha iqokobhe emva koko, iqokobhe lizakuphelisa umyalelo osezantsi ngophawu lwehangup ( bulala -SIGHUP ).
Kutheni i-nohup ingasebenzi?
Re: nohup ayisebenzi
Iqokobhe inokuba iyasebenza kwaye ulawulo lomsebenzi luvaliwe. … Ngaphandle kokuba usebenzisa iqokobhe elithintelweyo, olu cwangciso kufuneka lutshintshwe ngumsebenzisi. Qhuba "stty -a |grep tostop". Ukuba i "tostop" TTY ukhetho lucwangcisiwe, nawuphi na umsebenzi ongasemva uyayeka nje ukuba izama ukuvelisa nasiphi na isiphumo kwi-terminal.
Kutheni u-nohup engalihoyi igalelo?
nohup ikuxelela kanye into eyenzayo, ukuba ayihoyi igalelo. "Ukuba igalelo elisemgangathweni lisisiphelo sendlela, liqondise kwakhona ukusuka kwifayile engafundekiyo." Iyenza le imele ukuba iyenze, ngaphandle kwamangeniso OPTION, yiyo loo nto igalelo lilahlwayo.
Ndazi njani ukuba umsebenzi uqhuba e-nohup?
Impendulo ye-1
- Kuya kufuneka uyazi i-pid yenkqubo ofuna ukuyijonga. Ungasebenzisa pgrep okanye imisebenzi -l : imisebenzi -l [1]- 3730 Ukubaleka ukulala 1000 & [2]+ 3734 Ukubaleka nohup ukulala 1000 & ...
- Jonga kwi/proc/ /fd.
Uyisebenzisa njani i-disown?
Umyalelo we-disown yinto eyakhelwe-ngaphakathi esebenza ngamaqokobhe afana ne-bash kunye ne-zsh. Ukuyisebenzisa, wena chwetheza "ukuzilahla" kulandelwa yinkqubo ye-ID (PID) okanye inkqubo ofuna ukuyikhanyela.
How do I redirect nohup output?
Redirecting Output to a File
Ngokuzenzekela, nohup redirects the command output to the nohup. out file. If you want to redirect the output to a different file, use the standard shell redirection.
What is nohup file?
nohup a POSIX command which means “no hang up”. Its purpose is to execute a command such that it ignores the HUP (hangup) signal and therefore does not stop when the user logs out. Output that would normally go to the terminal goes to a file called nohup.