filter lines in a file

[shyg]

How can I filter out certian lines from a file? I cant use tail or head since I am not after the first or last portions of the file but specific lines say 21-30 and 33,36,40 and so on how would I filter by the line and by a group like 21-30.

 

[PHV]

man sed (the address,address stuff)
man awk (the NR builtin variable)

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ222-2244

 

[CaKiwi]

awk 'NR>=21&&NR<=30||NR==33||NR==36||NR==40' infile > outfile

CaKiwi

 

[Ygor]

sed -n '21,30p;33p;36p;40p' infile > outfile