autoflush – Tarik Billa

Can you force flush output in Perl?

November 25, 2023 by Tarik

By default, STDOUT is line-buffered (flushed by LF) when connected to a terminal, and block-buffered (flushed when buffer becomes full) when connected to something other than a terminal. Furthermore, <STDIN> flushes STDOUT when it’s connected to a terminal. This means STDOUT isn’t connected to a terminal, you aren’t printing to STDOUT, or STDOUT’s been messed … Read more

Update Command-line Output, i.e. for Progress

March 1, 2023 by Tarik

This can be done using ANSI Escape Sequences — see here for a list. In PHP, you’ll use “\033” when it’s indicated ESC on that page. In your case, you could use something like this : echo “Progress : “; // 5 characters of padding at the end for ($i=0 ; $i<=100 ; $i++) { … Read more