ruby--ruby/sample/io.rb

45 lines
626 B
Ruby

# IO test
# usage: ruby io.rb file..
home = ENV["HOME"]
home.sub("m", "&&")
print(home, "\n")
print(home.reverse, "\n")
if File.s("io.rb")
print(File.s("io.rb"), ": io.rb\n")
end
$/="f\n"
for i in "abc\n\ndef\nghi\n"
print("tt: ", i)
end
printf("%s:(%d)%s\n", $0, ARGV.length, ARGV[0])
passwd = open(ARGV[0], "r")
#printf("%s", passwd.find{i|i =~ /\*/})
n = 1
for i in passwd #.grep(/^\*/)
printf("%6d: %s", n, i)
n = n + 1;
end
fp = open("|-", "r")
if fp == nil
for i in 1..5
print(i, "\n")
end
else
for line in fp
print(line)
end
end
def printUsage()
if $USAGE
apply($USAGE);
end
end