# ts > Add timestamps to every line from standard input. > More information: . - Add a timestamp to the beginning of each line: `{{some_command}} | ts` - Add timestamps with microsecond precision: `{{some_command}} | ts "{{%b %d %H:%M:%.S}}"` - Add [i]ncremental timestamps with microsecond precision, starting from zero: `{{some_command}} | ts -i "{{%H:%M:%.S}}"` - Convert existing timestamps in a text file (eg. a log file) into [r]elative format: `cat {{path/to/file}} | ts -r`