Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Extract a filename from a path
Linux Commands: Use basename with an explicit suffix when removing a known extension.
Linux Commands✓ Tested
Extract a JSON field
Read a scalar value from JSON text.
json_extract✓ Tested
Extract a parent path with parameter expansion
Bash Scripts: Percent removes the shortest matching slash-and-suffix portion.
Bash Scripts✓ Tested
Extract a route path variable
Extract a route path variable using a complete Go program with explicit sample inputs.
Go✓ Tested
Extract a substring by offset and length
Bash Scripts: Bash substring offsets start at zero for an ordinary string.
Bash Scripts✓ Tested
Extract digit sequences
Extract digit sequences using a complete Go program with explicit sample inputs.
Go✓ Tested
Extract filename components
Python: Use pathlib properties to separate a directory, filename stem, and suffix.
Python✓ Tested
Extract part of a string
Use one-based positions with substr.
substr✓ Tested
Filter by a numeric comparison
SQLite: Keep rows whose quantity exceeds a chosen threshold.
SQLite✓ Tested
Filter groups after aggregation
SQLite: Use HAVING to test a group’s calculated total.
SQLite✓ Tested
Filter lines by literal text
Linux Commands: Filter lines by literal text using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Filter rows before grouping
SQLite: WHERE limits the rows contributing to the aggregate; it differs from filtering completed groups with HAVING.
SQLite✓ Tested