Bawo ni o ṣe rii laini nth ni Linux?
Ni isalẹ wa awọn ọna nla mẹta lati gba laini nth ti faili ni Linux.
- ori / iru. Nikan lilo apapo ti ori ati awọn pipaṣẹ iru jẹ ọna ti o rọrun julọ. …
- sed. Awọn ọna meji lo wa lati ṣe eyi pẹlu sed. …
- awk. awk ni itumọ ti NR oniyipada ti o tọju abala awọn nọmba ila-faili / ṣiṣan.
Bawo ni o ṣe tẹjade laini nth ni Unix?
5 Sed ADDRESS kika Awọn apẹẹrẹ
- Eyi yoo baramu laini Nth nikan ninu titẹ sii. …
- M~N pẹlu pipaṣẹ “p” ṣe atẹjade gbogbo laini Nth ti o bẹrẹ lati laini M…
- M, N pẹlu aṣẹ “p” tẹ laini Mth si laini Nth. …
- $ pẹlu "p" pipaṣẹ ibaamu nikan awọn ti o kẹhin ila lati awọn igbewọle. …
- N,$ pẹlu pipaṣẹ “p” tẹ jade lati laini Nth si opin faili.
14 osu kan. Ọdun 2009
How do I print a specific line in Linux?
Ìwé jẹmọ
- awk : $>awk '{if(NR==LINE_NUMBER)' tẹjade $0}' file.txt.
- sed : $>sed -n LINE_NUMBERp file.txt.
- ori: $>ori -n LINE_NUMBER file.txt | iru -n + LINE_NUMBER Nibi LINE_NUMBER wa, nọmba ila wo ni o fẹ lati tẹ. Awọn apẹẹrẹ: Tẹjade laini kan lati faili ẹyọkan.
26 osu kan. Ọdun 2017
What is the Print command in Linux?
The lp command is used to print files on Unix and Linux systems. … The name “lp” stands for “line printer”.
Bawo ni MO ṣe ṣafihan laini kan lati faili ọrọ ni Linux?
Bii o ṣe le ṣafihan Awọn laini pato ti Faili kan ni Laini Aṣẹ Lainos
- Ṣe afihan awọn laini kan pato nipa lilo awọn pipaṣẹ ori ati iru. Tẹjade ila kan pato kan. Sita pato ibiti o ti ila.
- Lo SED lati ṣafihan awọn laini pato.
- Lo AWK lati tẹ awọn laini kan pato lati faili kan.
2 ati. Ọdun 2020
Bawo ni o ṣe yan laini ni Linux?
Press Shift+End for the end of the line. If you want to copy the whole line from first to last simply place the cursor somewhere in that line and hit CTRL+C. Press Home key to get to the start of the line. For Selecting multiple lines, use Up/Down key.
Aṣẹ wo ni yoo tẹjade gbogbo awọn ila ninu faili naa?
Awọn laini titẹ sita lati Faili kan nipa lilo sed
sed “p” command lets us print specific lines based on the line number or regex provided. sed with option -n will suppress automatic printing of pattern buffer/space.
Kini P ni aṣẹ sed?
Ni sed, p ṣe atẹjade laini ti a koju, lakoko ti P ṣe atẹjade apakan akọkọ nikan (to kikọ tuntun n) ti laini ti a koju. … Awọn pipaṣẹ mejeeji ṣe ohun kanna, nitori ko si ohun kikọ laini tuntun ninu ifipamọ.
How do I print line numbers in awk?
1 Idahun
- grep -n ‘bla’ file.
- alternatively awk : awk ‘/bla/{print NR”:”$0}’ file.
- alternatively perl : perl -ne ‘print $.,”:”,$_ if /bla/’ file.
- alternatively sed : sed ‘/bla/!d;=’ file |sed ‘N;s/n/:/’
25 ati. Ọdun 2015
Bawo ni MO ṣe ṣe afihan nọmba awọn laini ninu faili ni Unix?
Bii o ṣe le Ka awọn laini ninu faili ni UNIX/Linux
- Aṣẹ “wc -l” nigbati o ba ṣiṣẹ lori faili yii, ṣe agbejade kika laini pẹlu orukọ faili naa. $ wc -l file01.txt 5 file01.txt.
- Lati yọ orukọ faili kuro ninu abajade, lo: $ wc -l < file01.txt 5.
- O le pese iṣelọpọ aṣẹ nigbagbogbo si aṣẹ wc nipa lilo paipu. Fun apere:
Bawo ni MO ṣe ṣafihan awọn laini 10 akọkọ ti faili ni Linux?
Tẹ aṣẹ ori atẹle yii lati ṣafihan awọn laini 10 akọkọ ti faili kan ti a npè ni “bar.txt”:
- ori -10 bar.txt.
- ori -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 ati titẹ' /etc/passwd.
- perl -ne'1..20 ati titẹ' /etc/passwd.
18 дек. Ọdun 2018 г.
Bawo ni o ṣe daakọ laini kan ni Linux?
Ti kọsọ ba wa ni ibẹrẹ ila, yoo ge ati daakọ gbogbo ila naa. Ctrl+U: Ge apakan laini ṣaaju kọsọ, ki o ṣafikun si ifipamọ agekuru. Ti kọsọ ba wa ni opin ila, yoo ge ati daakọ gbogbo ila naa. Ctrl+Y: Lẹẹ ọrọ ti o kẹhin ti o ge ati daakọ.
Bawo ni MO ṣe ṣe atokọ gbogbo awọn atẹwe ni Linux?
Òfin lpstat -p yoo ṣe atokọ gbogbo awọn atẹwe ti o wa fun Ojú-iṣẹ rẹ.
Bawo ni MO ṣe rii awọn iṣẹ itẹwe ni Linux?
Bii o ṣe le Ṣayẹwo Ipo Awọn atẹwe
- Wọle si eyikeyi eto lori nẹtiwọki.
- Ṣayẹwo ipo awọn ẹrọ atẹwe. Awọn aṣayan ti o wọpọ julọ lo nikan ni o han nibi. Fun awọn aṣayan miiran, wo thelpstat(1) oju-iwe eniyan. $ lpstat [-d] [-p] itẹwe-orukọ [-D] [-l] [-t] -d. Ṣe afihan itẹwe aiyipada ti eto naa. -p itẹwe-orukọ.
Bawo ni o ṣe lo aṣẹ Print?
Awọn aṣayan wọnyi ni a gba laaye nikan ni igba akọkọ ti o ba ṣiṣẹ aṣẹ PRINT: /D (ẹrọ) - Ni pato ẹrọ titẹ. Ti ko ba ṣe pato, PRINT yoo tọ ọ lati tẹ orukọ ẹrọ titẹ sii.