col [ -bfx] [ -l num]
The col(1) utility reads from the standard input and writes to the standard output.
The following tables lists the control sequences for carriage motion that col(1) understands and their decimal values:
|ESC-7||reverse line feed (escape then 7)|
|ESC-8||half reverse line feed (escape then 8)|
|ESC-9||half forward line feed (escape then 9)|
|backspace||moves back one column (8); ignored in the first column|
|newline||forward line feed (10); also does carriage return|
|shift in||shift to normal character set (15)|
|shift out||shift to alternate character set (14)|
|space||moves forward one column (32)|
|tab||moves forward to next tab stop (9)|
|vertical tab||reverse line feed (11)|
All unrecognized control characters and escape sequences are discarded.
The col(1) utility keeps track of the character set as characters are read and ensures that the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col(1) will display a warning message.