Nushell Niceties: Adding Indices To Lists
The Nushell command enumerate
adds an index value to each item in a list. The index value is stored in an extra column named index
. You can use this column to filter data based on the index value.
The Nushell command enumerate
adds an index value to each item in a list. The index value is stored in an extra column named index
. You can use this column to filter data based on the index value.
Nushell has very useful commands to filter lists and tables. When you have a list with null values, you can use the compact
command to filter out the null values. With the option --empty
you can also filter out empty items like empty strings, empty lists and empty records. If you want to filter out rows in a table where a column contains a null value, you can use the compact
command followed by the name of the column.
Nushell has some nice built-in commands to get randomized data. The random
command can be used to get random numbers, strings, and more. You can use the dice
subcommand to get random numbers between 1 and 6. The command returns a list of integers. With the option --dice
you can specify how many times to throw the dice. By default the dice has 6 sides, but you can use the option --sides
to change that. You could roll a dice with 2 sides, like flipping a coin, or roll a dice with 10 sides.
The nice thing about the http
command in Nushell is that you can interact with HTTP endpoints without the need to install any external tools. You can use several subcommands like get
, post
, put
, delete
and patch
. Each of these commands has the options to specify request headers. You can use the option --headers
or the short version -H
followed by a list of header keys and values.
The http
command in Nushell can be used to interact with HTTP endpoints. You can post data to an endpoint using the post
subcommand. If you want to post JSON data than you can simply use a record data structure and use the argument --content-type application/json
(or the shorthand -t application/json
). Nushell will automatically convert the record data structure to JSON and use it as the body of the HTTP request.
Nushell has a built-in command to invoke HTTP requests: http
. You don’t need an external tool like curl
or httpie
to make HTTP requests. There a lot of options to use with the http
command. One of them is the --full
or shorter -f
option to return a table with extra details of the HTTP request and response. The request and response headers, the body and status are returned in the table. You can easily get information from the table with all the default selection options for a table structure.
Nushell has a lot of commands to work with strings. The str kebab-case
command can be used to convert a string to kebab case. Kebab-case is a string that contains only lowercase letters and words are separated by hyphens.