How do you print lines in Linux?
Tuhia he hōtuhi bash hei tā i tētahi rārangi mai i tētahi kōnae
- awk : $>awk '{if(NR==LINE_NUMBER) tāngia $0}' file.txt.
- sed : $>sed -n LINE_NUMBERp file.txt.
- upoko : $>upoko -n LINE_NUMBER kōnae.txt | hiku -n + LINE_NUMBER Anei ko LINE_NUMBER, ko tehea tau raina e hiahia ana koe ki te tā. Tauira: Taa he raina mai i te konae kotahi.
How do I print two lines in Linux?
With GNU sed , you can print lines 2, 3, 10, etc., using: sed -n ‘2p;10p;3p;…’ If you mean you want to print a range of lines then you can use this sed -n 2,4p somefile. txt .
How do I display the first few lines of a file in Linux?
Hei titiro ki nga rarangi tuatahi o te konae, Patohia te ingoa ingoa upoko, kei hea te ingoa o te ingoa o te konae e hiahia ana koe ki te titiro, ka pehi . Ma te taunoa, ka whakaatuhia e te upoko nga rarangi tuatahi 10 o te konae. Ka taea e koe te huri i tenei ma te pato i te ingoa ingoa upoko -number, ko te nama te maha o nga rarangi e hiahia ana koe ki te kite.
How do I make a line in Linux?
Mena kei roto koe i te vi, ka taea e koe te whakamahi i te tono goto. Hei mahi i tenei, Patohia te Esc, patohia te nama raina, ka pehi i te Shift-g . Mena ka pehi koe i te Esc katahi ka Shift-g me te kore e tohua he nama raina, ka kawea koe ki te rarangi whakamutunga o te konae.
Ko tehea whakahau ka ta i nga rarangi katoa ki te konae?
ture grep i roto i te Unix/Linux. Ko te tātari grep e rapu ana i tetahi konae mo tetahi tauira o nga tohu, ka whakaatu i nga rarangi katoa kei roto taua tauira. Ko te tauira e rapuhia ana i roto i te konae ka kiia ko te kii auau (ko te grep te tohu mo te rapu puta noa i te ao mo te whakaputa korero me te whakaputa).
How do I print a single line output in Unix?
taea e koe insert $(command) (new style) or `command` (old style) to insert the output of a command into a double-quoted string. echo “Welcome $(whoami)!” Note: In a script this will work fine. If you try it at an interactive command line the final !
How do I print multiple lines in bash?
How to print multiple line string on bash
- String literal. String Literal. text = ” First Line. Second Line. Third Line. “
- Use cat. cat. text = $(cat << EOF. First Line. Second Line. Third Line. EOF. )
Me pehea taku taa awk?
Hei tā i tētahi rārangi pātea, whakamahi tā "", kei hea "" ko te aho kau. Hei ta i tetahi waahanga kuputuhi kua mau, whakamahia te aho tonu, penei i te “Kaua e Pawera”, hei mea kotahi. Mena ka wareware koe ki te whakamahi i nga tohu korero-rua, ka tangohia to tuhinga hei whakaaturanga awk, katahi ka hapa koe.
He aha te whakahau hei whakaatu i nga rarangi 10 tuatahi o te konae i Linux?
Ko te whakahau mahunga, ko te tikanga o te ingoa, tuhia te nama N o runga o nga raraunga o te whakaurunga kua hoatu. Ma te taunoa, ka taia e ia nga rarangi 10 tuatahi o nga konae kua tohua. Mena ka nui ake i te kotahi te ingoa o te konae ka tukuna mai nga raraunga mai i ia konae kei mua i tona ingoa konae.
Me pehea taku whakaatu i te maha o nga rarangi kei roto i te konae kei Unix?
Me pehea te tatau raina i roto i tetahi konae kei UNIX/Linux
- Ko te tono "wc -l" ka whakahaeretia i runga i tenei konae, ka whakaputahia te tatau raina me te ingoa konae. $ wc -l file01.txt 5 file01.txt.
- Hei whakakore i te ingoa kōnae mai i te hua, whakamahia: $ wc -l <file01.txt 5.
- Ka taea e koe te whakarato i te putanga whakahau ki te whakahau wc ma te paipa. Hei tauira:
Me pehea taku whakaatu i te raina waenga i Linux?
Ko te whakahau "upoko" ka whakamahia ki te tiro i nga rarangi o runga o te konae me te whakahau "hiku" hei tiro i nga rarangi i te mutunga.
Me pehea taku whakaatu i te rarangi 10 o te konae?
Kei raro nei e toru nga huarahi pai ki te tiki i te rarangi nth o te konae i Linux.
- upoko / hiku. Ko te whakamahi noa i te huinga o nga whakahau mahunga me te hiku ko te huarahi ngawari ake. …
- sed. E rua nga huarahi pai hei mahi ma te sed. …
- awk. Kei a awk tetahi NR taurangi i hangaia hei pupuri i nga tau rarangi konae/awa.
Me pehea te haere ki te timatanga o te raina?
Hei whakatere ki te timatanga o te raina e whakamahia ana: “CTRL+a”. Hei whakatere ki te mutunga o te raina e whakamahia ana: “CTRL+e”.