lines

lines

Print a range of lines.

Description

lines is a line filter that either prints a range of lines, or skips some specified number of lines from the header, some specified number of lines from the footer, or both.

Example

All of the examples assume the following input file, sample.txt.

1: test
2: test
3: test
4: test
5: test
6: test
7: test
8: test
9: test
10: test

Printing a range of lines using '--range START-END'

$ lines sample.txt -r 4-7
4: test
5: test
6: test
7: test

Either or both of the ends of the range parameter may be omitted. When the first number is omitted, printing starts at the first line. When the final number is omitted, printing ends at the final line.

$ lines sample.txt -r -3
1: test
2: test
3: test

$ lines sample.txt -r 7-
7: test
8: test
9: test
10: test

Printing a single line using '--range N'

$ lines sample.txt -r 3
3: test

Omitting one or more header lines using '--header N'

$ lines sample.txt --header 2
4: test
5: test
6: test
7: test
8: test
9: test
10: test

Omitting one or more footer lines using '--footer N'

$ lines sample.txt --footer 2
1: test
2: test
3: test
4: test
5: test
6: test
7: test
8: test

Omitting lines from both the header and footer

$ lines sample.txt --header 3 --footer 2
4: test
5: test
6: test
7: test
8: test

Printing only the initial N lines

Duplicates behavior of invoking head -n 3, but included here for completeness.

$ lines sample.txt --head 3
1: test
2: test
3: test

Printing only the final N lines

Duplicates behavior of invoking tail -n 3, but included here for completeness.

$ lines sample.txt --tail 3
8: test
9: test
10: test