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Linux CommandsFiles & folders

Create a directory tree

Create a directory and its missing parent directories. The -p option also succeeds when the directories already exist.

directory✓ Tested
GitTags & repository configuration

Create a lightweight tag at the current commit

Git: A lightweight tag is a direct reference without an annotation object.

Git✓ Tested
Docker / ComposeNetworks & volume metadata

Create a network marked for internal connectivity

Docker / Compose: The internal option disables normal external routing for that network.

Docker / Compose✓ Tested
PowerShellGetting Started

Create a portable relative path

PowerShell: Create a portable relative path using PowerShell 7.

PowerShell✓ Tested
C#LINQ transformations

Create a reusable one-to-many lookup

C#: ToLookup groups values by key and returns an empty sequence for an unknown key.

C#✓ Tested
Linux CommandsFiles & folders

Create a symbolic link

Create a relative symbolic link to a file and inspect its target with readlink.

symlink✓ Tested
PowerShellGetting Started

Create an array of text values

PowerShell: Create an array of text values using PowerShell 7.

PowerShell✓ Tested
SQLSchema design & transactions

Create an index for an equality filter

SQL: A nonunique index can support lookups on a frequently filtered column.

SQL✓ Tested
SQL ServerSchema design & transactions

Create an index for an equality filter

SQL Server: A nonunique index can support lookups on a frequently filtered column.

SQL Server✓ Tested
PostgresSchema design & transactions

Create an index for an equality filter

Postgres: A nonunique index can support lookups on a frequently filtered column.

Postgres✓ Tested
SQLiteSchema design & transactions

Create an index for an equality filter

SQLite: A nonunique index can support lookups on a frequently filtered column.

SQLite✓ Tested
PowerShellGetting Started

Create an object with named properties

PowerShell: Create an object with named properties using PowerShell 7.

PowerShell✓ Tested