Results for &#x201C;position&#x201D;

Observe command substitution’s trailing-newline removal

Bash Scripts: Command substitution removes trailing newlines while preserving embedded ones.

Read a stream again from its beginning

C: rewind returns a seekable stream to offset zero and clears its error and EOF indicators.

Read bytes from a chosen file offset

C: Check fseek before reading so an unsupported or invalid seek is not ignored.

Read characters without confusing EOF with a byte

C: Store fgetc in int so every unsigned-char value remains distinguishable from EOF.

Remove one known scratch file

C: Check remove’s return value instead of assuming deletion succeeded.

Rename a known file

C: The standard rename function reports failure through its return value.

Return a value through a named output variable

Bash Scripts: A Bash nameref can update a caller-supplied variable without command substitution.

Return an array through a nameref

Bash Scripts: Assign through a nameref to preserve array element boundaries.

CSSPositioning & stacking

Rotate a rectangular box around its center

CSS: A ninety-degree transform swaps the visible bounding-box width and height.

CSS✓ Tested

Use a function’s exit status as a boolean result

Bash Scripts: Return zero for success and test the function directly in a conditional.

Use a recursive function for a bounded calculation

Bash Scripts: A recursive factorial demonstrates local variables and a clear base case.

Use an automatically removed temporary file

C: tmpfile creates a binary update stream whose file is removed when closed.