Return or exclude the nth lines supplied from stdin as output on stdout. See the Python version of this utility here: nth_py.
This project utilizes byte_lines to iterate over standard input as lines of bytes, instead of strings or individual bytes.
cargo install nth_rs$ dmesg | nth_rs 0 1 2 3
[ 4.095065] xhci-hcd xhci-hcd.3.auto: xHCI Host Controller
[ 4.100328] xhci-hcd xhci-hcd.3.auto: new USB bus registered, assigned bus number 4
[ 4.107985] xhci-hcd xhci-hcd.3.auto: Host supports USB 3.0 SuperSpeed
[ 4.109677] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0)
To better illustrate, let's enumerate each line of stdin:
$ dmesg | count | nth_rs 0 1 2 3
0 [ 4.095065] xhci-hcd xhci-hcd.3.auto: xHCI Host Controller
1 [ 4.100328] xhci-hcd xhci-hcd.3.auto: new USB bus registered, assigned bus number 4
2 [ 4.107985] xhci-hcd xhci-hcd.3.auto: Host supports USB 3.0 SuperSpeed
3 [ 4.109677] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0)$ nth_rs --help
nth 0.2.0
AlexDeLorenzo.dev
Return the contents of stdin from the line numbers supplied as arguments.
USAGE:
nth_rs [FLAGS] <LINES>...
FLAGS:
-h, --help Prints help information
-r, --reverse Write every line, except the line numbers supplied as LINES, from stdin to stdout.
-V, --version Prints version information
ARGS:
<LINES>... Line numbers to select
See LICENSE. If you'd like to use this project with a different license, please get in touch.