Results for “open file”
Small, practical examples. Search by task or narrow things down below.
Check available disk space
Show total, used, and available filesystem space for the current directory in human-readable units.
disk✓ Tested
Check both ends of a range
Arduino / C: Check both ends of a range on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Check EEPROM capacity before a write
Arduino / C: length reports the available address count for this board.
Arduino / C✓ Tested
Check for a hashtable key before reading it
PowerShell: ContainsKey distinguishes a missing key from a key whose value happens to be null.
PowerShell✓ Tested
Check out another branch in a second working tree
Git: A linked worktree shares repository objects while maintaining a separate checked-out branch.
Git✓ Tested
Check that an image has layer history
Docker / Compose: history shows the instructions associated with image layers.
Docker / Compose✓ Tested
Check the integrity of a gzip stream
Linux Commands: Use gzip -t to verify a compressed file without extracting it.
Linux Commands✓ Tested
Check what kind of Git object a revision names
Git: cat-file -t distinguishes a commit, tree, blob, or annotated tag.
Git✓ Tested
Check whether a command can be resolved
PowerShell: Get-Command with a local error override supports an expected missing-command lookup.
PowerShell✓ Tested
Check whether a floating-point value is finite
Check whether a floating-point value is finite in a complete Rust program using the standard library.
Rust✓ Tested
Check whether bytes contain valid JSON
Check whether bytes contain valid JSON using a complete Go program with explicit sample inputs.
Go✓ Tested
Check whether text contains a phrase
Use a case-sensitive Java substring check.
Java✓ Tested