Results for “read lines”
Small, practical examples. Search by task or narrow things down below.
Check an upper integer bound before adding
C++: For these nonnegative values, compare against the maximum minus the addend first.
C++✓ Tested
Check available disk space
Show total, used, and available filesystem space for the current directory in human-readable units.
disk✓ Tested
Check memory usage
Show memory and swap totals in human-readable units. The available column estimates memory usable by new applications.
memory✓ Tested
Check that a file is present and nonempty
Test file content availability before reading it.
file check✓ Tested
Check whether a variable exists under nounset
Bash Scripts: The plus expansion distinguishes an unset variable without reading its missing value.
Bash Scripts✓ Tested
Choose between two branches
C++: Use if and else to handle an available or empty stock count.
C++✓ Tested
Combine matching rows with INNER JOIN
Read product names with their matching stock values.
INNER JOIN✓ Tested
Combine text with a name
C++: Construct a greeting from a fixed prefix and a stored name.
C++✓ Tested
Compare a row with the previous row
Read a preceding value with LAG.
LAG✓ Tested
Compare a value with a limit
Python: Turn a comparison into a readable yes or no result.
Python✓ Tested
Compare a value with a limit
C#: Turn a comparison into a readable yes or no result.
C#✓ Tested
Compare a value with a limit
Java: Turn a comparison into a readable yes or no result.
Java✓ Tested