In years past, ignoring this use of the first column could cause bad things on a line printer, like page ejects — but when was the last time that you saw a line printer? Otherwise it was output device, compiler and OS dependent. The advice of “Fortran 95/2003 for Scientists and Engineers” was excellent for … Read more
There is a table listing all the escape codes and their meanings in the documentation. Escape Sequence Meaning Notes \xhh Character with hex value hh (4,5) Notes: 4. Unlike in Standard C, exactly two hex digits are required. 5. In a string literal, hexadecimal and octal escapes denote the byte with the given value; it … Read more
One way is to use Get-Content’s -Encoding parameter e.g.: Get-Content foo.txt -Encoding byte | % {“0x{0:X2}” -f $_} If you have the PowerShell Community Extensions, you can use the Format-Hex command: Format-Hex foo.txt Address: 0 1 2 3 4 5 6 7 8 9 A B C D E F ASCII ——– ———————————————– —————- 00000000 … Read more
I think I figured it out. I learned from here that each arrow key is represented by a unique ANSI escape code. Then I learned that the ANSI escape codes vary by system and application: in my terminal, hitting cat and pressing the up-arrow gives ^[[A, in C it seems to be \033[A, etc. The … Read more
Carriage return means to return to the beginning of the current line without advancing downward. The name comes from a printer’s carriage, as monitors were rare when the name was coined. This is commonly escaped as \r, abbreviated CR, and has ASCII value 13 or 0x0D. Linefeed means to advance downward to the next line; … Read more