Pehea wau e ʻike ai i ka hopena o kahi faila ma Linux?
ʻO ke kauoha huelo kahi mea hoʻohana Linux nui i hoʻohana ʻia e nānā i ka hopena o nā faila kikokikona. Hiki iā ʻoe ke hoʻohana i ke ʻano hahai e ʻike i nā laina hou i ka wā i hoʻohui ʻia i kahi faila i ka manawa maoli. Ua like ka huelo me ka pono poʻo, hoʻohana ʻia no ka nānā ʻana i ka hoʻomaka o nā faila.
Pehea ʻoe e ʻimi ai i nā kauoha huelo?
Ma kahi o ka huelo -f , e hoʻohana i ka liʻiliʻi +F i like kona ʻano. A laila hiki iā ʻoe ke paʻi iā Ctrl+C e hoʻōki i ka huelo a hoʻohana? e huli i hope. No ka hoʻomau ʻana i ka huli ʻana i ka faila mai ka liʻiliʻi, e kaomi i ka F . Inā ʻoe e nīnau inā hiki ke heluhelu ʻia ka faila e kekahi kaʻina hana, ʻae, hiki.
Pehea ʻoe e ʻike ai i nā mea o kahi faila ma Linux?
No ka ʻimi ʻana i nā faila i loaʻa nā kikokikona kikoʻī ma Linux, e hana i kēia.
- E wehe i kāu app terminal punahele. ʻO XFCE4 terminal kaʻu makemake pilikino.
- E hoʻokele (inā makemake ʻia) i ka waihona kahi āu e ʻimi ai i nā faila me kekahi kikokikona kikoʻī.
- Kākau i kēia kauoha: grep -iRl "kou-text-to-find" ./
4 pule. 2017 г.
Pehea e loaʻa ai iaʻu nā laina 50 hope loa ma Linux?
Hōʻike ke kauoha huelo, ma ka maʻamau, nā laina 10 hope loa o kahi faila kikokikona ma Linux. Hiki ke kōkua nui kēia kauoha i ka nānā ʻana i nā hana hou i nā faila log. Ma ke kiʻi ma luna nei hiki iā ʻoe ke ʻike ua hōʻike ʻia nā laina hope 10 o ka faila /var/log/messages. ʻO kahi koho ʻē aʻe āu e ʻike ai i ka lima ʻo ke koho -f.
Pehea wau e ʻohi ai i ka laina hope o kahi faila ma Linux?
Hiki iā ʻoe ke mālama i kēia ma ke ʻano o ka papaʻaina, ʻo ka kolamu mua ka inoa file a ʻo ka lua ka hoʻokūkū, kahi o ka mea hoʻokaʻawale kolamu ka ':' ʻano. E kiʻi i ka laina hope o kēlā me kēia faila (prefixed me ka inoa faila). A laila, kānana i ka hopena ma muli o ke kumu. Hiki ke hana ʻia kahi koho ʻē aʻe me ka awk ma mua o ka grep.
Pehea ʻoe e hoʻohana ai i ke kauoha huelo?
Pehea e hoʻohana ai i ke kauoha huelo
- E hoʻokomo i ke kauoha huelo, a me ka faila āu e makemake ai e nānā: tail /var/log/auth.log. …
- No ka hoʻololi i ka helu o nā laina i hōʻike ʻia, e hoʻohana i ke koho -n: huelo -n 50 /var/log/auth.log. …
- No ka hōʻike ʻana i ka manawa maoli, ka hoʻoheheʻe ʻana o kahi faila hoʻololi, e hoʻohana i nā koho -f a i ʻole –follow: tail -f /var/log/auth.log.
10 aпр. 2017 г.
He aha ka mea i loko o ke kauoha huelo?
ʻelua koho laina kauoha kūikawā -f a me -F (follow) e hiki ai ke nānā ʻia kahi faila. Ma kahi o ka hōʻike ʻana i nā laina hope loa a puka i waho, hōʻike ka huelo i nā laina a laila nānā i ka faila. Ke hoʻohui ʻia nā laina hou i ka faila e kekahi kaʻina hana, hōʻano hou ka huelo i ka hōʻike.
Pehea ʻoe e grep ai i ke kauoha huelo?
I ka hapanui o nā hihia, hiki iā ʻoe ke huelo -f /var/log/some. log |grep foo a e holo pono ana. Makemake au i kēia, no ka mea hiki iā ʻoe ke hoʻohana i ka ctrl + c e hoʻōki a hoʻokele i ka faila i kēlā me kēia manawa, a laila kaomi wale i ka shift + f e hoʻi i ke ola, ka huli ʻana.
Pehea wau e hoʻohana ai i ka grep e ʻimi i kahi waihona?
No ka hoʻokomo ʻana i nā subdirectories āpau i kahi hulina, hoʻohui i ka -r operator i ke kauoha grep. Paʻi kēia kauoha i nā pāʻani no nā faila a pau i ka papa kuhikuhi o kēia manawa, nā subdirectories, a me ke ala pololei me ka filename. Ma ka laʻana ma lalo nei, ua hoʻohui pū mākou i ka mea hoʻohana -w e hōʻike i nā huaʻōlelo holoʻokoʻa, akā like ka puka puka.
Pehea wau e kiʻi ai i nā faila a pau i kahi papa kuhikuhi?
Ma ka paʻamau, e hoʻokuʻu ʻo grep i nā subdirectories āpau. Eia naʻe, inā makemake ʻoe e grep ma o lākou, grep -r $PATTERN * ka hihia. E hoʻomaopopo, ʻo ka -H ka mac-specific, hōʻike ia i ka filename i nā hopena. No ka huli ʻana ma nā papa kuhikuhi āpau, akā ma nā ʻano faila kikoʻī wale nō, e hoʻohana i ka grep me –include .
Pehea wau e kiʻi ai i kahi faila ma Linux?
Huli ke kauoha grep i ka faila, e ʻimi ana i nā hoʻohālikelike i ke kumu i kuhikuhi ʻia. No ka hoʻohana ʻana iā ia e ʻano grep , a laila ke kumu a mākou e ʻimi nei a hope ka inoa o ka faila (a i ʻole nā faila) a mākou e ʻimi nei.
Pehea ʻoe e hoʻomau mau ai i kahi faila ma Linux?
He wikiwiki a maʻalahi ke kauoha huelo. Akā inā makemake ʻoe i ʻoi aku ma mua o ka hahai wale ʻana i kahi faila (e laʻa, ka ʻōwili ʻana a me ka ʻimi ʻana), a laila ʻoi aku paha ke kauoha iā ʻoe. E kaomi Shift-F. Na kēia e lawe iā ʻoe i ka hopena o ka faila, a hōʻike mau i nā mea hou.
Pehea ʻoe e hōʻike ai i nā laina 100 kiʻekiʻe ma Linux?
Kākau i kēia kauoha poʻo e hōʻike i nā laina 10 mua o kahi faila i kapa ʻia ʻo "bar.txt":
- poʻo -10 bar.txt.
- poʻo -20 bar.txt.
- sed -n 1,10p /etc/group.
- sed -n 1,20p /etc/group.
- awk 'FNR <= 10' /etc/passwd.
- awk 'FNR <= 20' /etc/passwd.
- perl -ne'1..10 a paʻi ' /etc/passwd.
- perl -ne'1..20 a paʻi ' /etc/passwd.
Dek 18. 2018 g.
Pehea wau e ʻike ai i nā laina 10 hope loa ma Linux?
Syntax kauoha huelo Linux
He kauoha ka huelo e paʻi ana i ka helu hope loa o nā laina (10 laina ma ka paʻamau) o kekahi faila, a laila hoʻopau. Laʻana 1: E paʻi ʻo "huelo" i nā laina hope he 10 o kahi faila, a laila puka. e like me kāu e ʻike ai, paʻi kēia i nā laina hope 10 o /var/log/messages.