Display certain line(s) from a text file in Linux.
阿新 • • 發佈:2018-03-03
statistic role n-1 mark art 2.7 box rtai ase
Purpose:
Display certain line or lines from a text file, such as :
Display the
1000th line from file message.log
or
Display the lines between 1000 and 1020 from file message.log
Solution:
Using sed:
sed -n ‘1000,1020p‘ message.log sed -n ‘1000,1020p; 1021q‘ message.log #break after read out 1020th line.
Using awk:
awk ‘{if ((NR >= 1000) && (NR <= 1020)) print $0}‘ message.log
Using cat && grep:
cat -n message.log | grep -A 20 ‘^ *1000‘
Using nl && grep:
nl message.log | grep -A 20 ‘^ *1000‘
Using tail && head:
tail -n +1000 message.log | head 20 head -n 1000 message.log | tail +20
Ref:
- http://serverfault.com/questions/133692/how-to-display-certain-lines-from-a-text-file-in-linux
Display certain line(s) from a text file in Linux.