From 2fcde1b1e9f9ab2e03d33d702465faa4c76450fd Mon Sep 17 00:00:00 2001 From: Jonathan Turner Date: Mon, 3 Jun 2019 05:18:24 +1200 Subject: [PATCH] Update README.md --- README.md | 191 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 106 insertions(+), 85 deletions(-) diff --git a/README.md b/README.md index d274622c4..b0026f6b0 100644 --- a/README.md +++ b/README.md @@ -50,95 +50,116 @@ The project is made available under the MIT license. See "LICENSE" for more info # A Taste of Nu +Nu has built-in commands for ls and ps, loading these results into a table you can work with. + ```text ~\Code\nushell> ps | where cpu > 0 -+-------------------+-----+-------+-------+----------+ -| name | cmd | cpu | pid | status | -+-------------------+-----+-------+-------+----------+ -| chrome.exe | - | 7.83 | 10508 | Runnable | -+-------------------+-----+-------+-------+----------+ -| SearchIndexer.exe | - | 7.83 | 4568 | Runnable | -+-------------------+-----+-------+-------+----------+ -| nu.exe | - | 54.83 | 15436 | Runnable | -+-------------------+-----+-------+-------+----------+ -| chrome.exe | - | 7.83 | 10000 | Runnable | -+-------------------+-----+-------+-------+----------+ -| BlueJeans.exe | - | 7.83 | 6968 | Runnable | -+-------------------+-----+-------+-------+----------+ - -~\Code\nushell> ps | where name == chrome.exe | take 10 - -+------------+-----+------+-------+----------+ -| name | cmd | cpu | pid | status | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 22092 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 17324 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 16376 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 21876 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 13432 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 11772 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 13796 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 1608 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 3340 | Runnable | -+------------+-----+------+-------+----------+ -| chrome.exe | - | 0.00 | 20268 | Runnable | -+------------+-----+------+-------+----------+ - -~\Code\nushell> ls | sort-by "file type" size -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| file name | file type | readonly | size | created | accessed | modified | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| .git | Directory | | Empty | a week ago | 2 minutes ago | 2 minutes ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| src | Directory | | Empty | a week ago | 42 minutes ago | 42 minutes ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| target | Directory | | Empty | a day ago | 19 hours ago | 19 hours ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| .gitignore | File | | 30 B | a week ago | 2 days ago | 2 days ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| .editorconfig | File | | 148 B | 6 days ago | 6 days ago | 6 days ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| Cargo.toml | File | | 714 B | 42 minutes ago | 42 minutes ago | 42 minutes ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| history.txt | File | | 1.4 KiB | 2 days ago | 30 minutes ago | 30 minutes ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| README.md | File | | 2.3 KiB | an hour ago | 30 seconds ago | 30 seconds ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ -| Cargo.lock | File | | 38.6 KiB | 42 minutes ago | 42 minutes ago | 42 minutes ago | -+---------------+-----------+----------+----------+----------------+----------------+----------------+ - -~\Code\nushell> ls | column "file name" "file type" size | sort-by "file type" -+---------------+-----------+----------+ -| file name | file type | size | -+---------------+-----------+----------+ -| .git | Directory | Empty | -+---------------+-----------+----------+ -| src | Directory | Empty | -+---------------+-----------+----------+ -| target | Directory | Empty | -+---------------+-----------+----------+ -| .editorconfig | File | 148 B | -+---------------+-----------+----------+ -| .gitignore | File | 30 B | -+---------------+-----------+----------+ -| Cargo.lock | File | 38.6 KiB | -+---------------+-----------+----------+ -| Cargo.toml | File | 714 B | -+---------------+-----------+----------+ -| history.txt | File | 1.4 KiB | -+---------------+-----------+----------+ -| README.md | File | 2.3 KiB | -+---------------+-----------+----------+ +C:\Source\Play\nushell(master)> ps | where cpu > 0 +------------------------------------------------ + name cmd cpu pid status +------------------------------------------------ + msedge.exe - 0.77 26472 Runnable +------------------------------------------------ + nu.exe - 7.83 15473 Runnable +------------------------------------------------ + SearchIndexer.exe - 82.17 23476 Runnable +------------------------------------------------ + BlueJeans.exe - 4.54 10000 Runnable +------------------------------------------------ ``` +Commands are linked together with pipes, allowing you to select the data you want to use. + +```text +~\Code\nushell> ps | where name == chrome.exe | first 5 + +---------------------------------------- + name cmd cpu pid status +---------------------------------------- + chrome.exe - 0.00 22092 Runnable +---------------------------------------- + chrome.exe - 0.00 17324 Runnable +---------------------------------------- + chrome.exe - 0.00 16376 Runnable +---------------------------------------- + chrome.exe - 0.00 21876 Runnable +---------------------------------------- + chrome.exe - 0.00 13432 Runnable +---------------------------------------- +``` + +The name of the columns in the table can be used to sort the table. + +```text +~\Code\nushell> ls | sort-by "file type" size +---------------------------------------------------------------------------------------- + file name file type readonly size created accessed modified +---------------------------------------------------------------------------------------- + .cargo Directory Empty a week ago a week ago a week ago +---------------------------------------------------------------------------------------- + .git Directory Empty 2 weeks ago 9 hours ago 9 hours ago +---------------------------------------------------------------------------------------- + images Directory Empty 2 weeks ago 2 weeks ago 2 weeks ago +---------------------------------------------------------------------------------------- + src Directory Empty 2 weeks ago 10 hours ago 10 hours ago +---------------------------------------------------------------------------------------- + target Directory Empty 10 hours ago 10 hours ago 10 hours ago +---------------------------------------------------------------------------------------- + tests Directory Empty 14 hours ago 10 hours ago 10 hours ago +---------------------------------------------------------------------------------------- + tmp Directory Empty 2 days ago 2 days ago 2 days ago +---------------------------------------------------------------------------------------- + rustfmt.toml File 16 B a week ago a week ago a week ago +---------------------------------------------------------------------------------------- + .gitignore File 32 B 2 weeks ago 2 weeks ago 2 weeks ago +---------------------------------------------------------------------------------------- + .editorconfig File 156 B 2 weeks ago 2 weeks ago 2 weeks ago +---------------------------------------------------------------------------------------- +``` + +You can also use the names of the columns to down-select to only the data you want. +```text +~\Code\nushell> ls | column "file name" "file type" size | sort-by "file type" +------------------------------------ + file name file type size +------------------------------------ + .cargo Directory Empty +------------------------------------ + .git Directory Empty +------------------------------------ + images Directory Empty +------------------------------------ + src Directory Empty +------------------------------------ + target Directory Empty +------------------------------------ + tests Directory Empty +------------------------------------ + rustfmt.toml File 16 B +------------------------------------ + .gitignore File 32 B +------------------------------------ + .editorconfig File 156 B +------------------------------------ +``` + +Some file times can be loaded as tables. + +```text +~\Code\nushell> open Cargo.toml +---------------------------------------------------- + dependencies dev-dependencies package +---------------------------------------------------- + [object Object] [object Object] [object Object] +---------------------------------------------------- + +~\Code\nushell> open Cargo.toml | select package +-------------------------------------------------------------------------- + authors description edition license name version +-------------------------------------------------------------------------- + [list List] A shell for the GitHub era 2018 MIT nu 0.1.1 +-------------------------------------------------------------------------- +``` Nu currently has fish-style completion of previous commands, as well ctrl-r reverse search. ![autocompletion][fish-style]