[I could never remember this so I’m putting it here.]
These are the fields of a crontab file:
a b c d e /full/path/to/script where a = minute (0-59), b = hour (0-23), c = day of the month (1-31), d = month of the year (1-12), e = day of the week (0-6 with 0=Sunday). * = every min, hour, day, etc. */10 = every 10 min, hour, day, etc.
This will open a text file and read it line by line. As it is, it will just print each line to the screen, so very much like the unix ‘cat’ command, but could very well do anything on the line just read by replacing the cout statement.
#include <fstream> #include <iostream> #include <string> void main() { string s; ifstream infile; infile.open("aaa.txt"); while(infile >> s) { cout << s << endl; } }
This is my stty setting (all in one line):
stty intr '^c' erase '^?' kill '^u' echoe echoctl echoke -ixany
To detect a CPU’s endian architecture, use either one of the variables set like so:
$is_big_endian = unpack("h*", pack("s", 1)) =~ /01/; $is_little_endian = unpack("h*", pack("s", 1)) =~ /^1/;
Found in Perlmonks