Results for “Input streams & redirection”
Small, practical examples. Search by task or narrow things down below.
Filter history by its author identity
Git: The author filter selects commits by their recorded author metadata.
Git✓ Tested
Filter rows before grouping
SQL: WHERE limits the rows contributing to the aggregate; it differs from filtering completed groups with HAVING.
SQL✓ Tested
Filter rows before grouping
SQL Server: WHERE limits the rows contributing to the aggregate; it differs from filtering completed groups with HAVING.
SQL Server✓ Tested
Filter rows before grouping
Postgres: WHERE limits the rows contributing to the aggregate; it differs from filtering completed groups with HAVING.
Postgres✓ Tested
Filter rows before grouping
SQLite: WHERE limits the rows contributing to the aggregate; it differs from filtering completed groups with HAVING.
SQLite✓ Tested
Filter values into a new slice
Filter values into a new slice using a complete Go program with explicit sample inputs.
Go✓ Tested
Find a commit that changed the count of a text string
Git: The pickaxe -S option finds commits that add or remove occurrences of a literal string.
Git✓ Tested
Find a named container in the created state
Docker / Compose: Combine name and status filters to narrow a listing.
Docker / Compose✓ Tested
Find an item’s index
Find an item’s index using a complete Go program with explicit sample inputs.
Go✓ Tested
Find both extremes in one algorithm call
C++: Check for a nonempty input before dereferencing the returned iterators.
C++✓ Tested
Find branches that contain a selected commit
Git: branch --contains limits the list to branches whose histories include the chosen revision.
Git✓ Tested
Find lines unique to the first sorted file
Linux Commands: Use comm -23 to retain only records absent from the second input.
Linux Commands✓ Tested