ターミナル操作
$ ls
$ pwd
$ ls /etc
$ date
$ date > date.txt
$ rm -r hoge
$ cp ../hoge/huga.txt .
$ mv hege.txt /virtual/home/b0282/hoge
$ cat hoge.rb
print "Hello, world!\n" |
print ARGV[0], "\n" |
print ARGV[0].to_i + ARGV[1].to_i, "\n" |
sum = 0 for i in 0...ARGV.size sum += ARGV[i].to_i end print sum, "\n" |
sum = 0.0 for i in 0...ARGV.size sum += ARGV[i].to_i end printf "%1.1f\n", sum / ARGV.size |
fact = 1 for i in 1..ARGV[0].to_i fact *= i end print fact, "\n" |
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