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各言語処理系でワンライナーを走らせる方法カンペ

Posted at 2016-06-07

awk

$ echo -e '10\n20' | awk '{print $1 * 2}'
20
40

$ perl -le 'print uc"hoge"'
HOGE

$ echo -e '10\n20' | perl -nle 'print $_ * 2'
20
40

$ php -r 'echo strtoupper("hoge");'
HOGE

$ echo -e '10\n20' | php -R 'echo $argn * 2 . PHP_EOL;'
20
40

$ node -e 'console.log("hoge".toUpperCase())'
HOGE

$ node -p '"hoge".toUpperCase()'
HOGE

$ echo -e '10\n20' | node -e 'process.stdin.on("data", buf => console.log(buf.toString().trim().split("\n").map(n => n * 2).join("\n")))'
20
40

$ ruby -e 'puts "hoge".upcase'
HOGE

$ echo -e '10\n20' | ruby -ne 'puts $_.to_i * 2'
20
40

$ python -c 'print "hoge".upper()'
HOGE

$ echo -e '10\n20' | python -c 'import sys; print "\n".join(str(int(n) * 2) for n in sys.stdin)'
20
40

$ coffee -e 'console.log "hoge".toUpperCase()'
HOGE

$ lsc -de '"hoge".to-upper-case! |> console.log'
HOGE