Bar graph added.

node_modules/d3-dsv/bin/dsv2dsv

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+
+var os = require("os"),
+    rw = require("rw").dash,
+    path = require("path"),
+    iconv = require("iconv-lite"),
+    commander = require("commander"),
+    dsv = require("../");
+
+var program = path.basename(process.argv[1]),
+    defaultInDelimiter = program.slice(0, 3) === "tsv" ? "\t" : ",",
+    defaultOutDelimiter = program.slice(-3) === "tsv" ? "\t" : ",";
+
+commander
+    .version(require("../package.json").version)
+    .usage("[options] [file]")
+    .option("-o, --out <file>", "output file name; defaults to “-” for stdout", "-")
+    .option("-r, --input-delimiter <character>", "input delimiter character", defaultInDelimiter)
+    .option("-w, --output-delimiter <character>", "output delimiter character", defaultOutDelimiter)
+    .option("--input-encoding <encoding>", "input character encoding; defaults to “utf8”", "utf8")
+    .option("--output-encoding <encoding>", "output character encoding; defaults to “utf8”", "utf8")
+    .parse(process.argv);
+
+var inFormat = dsv.dsvFormat(commander.inputDelimiter),
+    outFormat = dsv.dsvFormat(commander.outputDelimiter);
+
+rw.readFile(commander.args[0] || "-", function(error, text) {
+  if (error) throw error;
+  rw.writeFile("-", iconv.encode(outFormat.format(inFormat.parse(iconv.decode(text, commander.inputEncoding))) + os.EOL, commander.outputEncoding), function(error) {
+    if (error) throw error;
+  });
+});