How to use the colors-cli/safe.blue function in colors-cli

var request = require('superagent');
var cheerio = require('cheerio');
var toMarkdown = require('to-markdown');
var path = require('path');
var process = require('process');
var fs = require('fs');
var color = require('colors-cli/safe');
var error = color.red.bold;
var warn = color.yellow;
var notice = color.blue;
var success = color.green;

var param = process.argv.slice(2);


// 需要爬的命令
// var arr = ["find"]; 
// var arr = []; 
var arr = []; 
// var arr = ["arch","axel","chsh","comm","compress","csplit","cut","dd","dig","dmesg","domainname","du","enable","fdisk","file","ftp","htpasswd","id","insmod","losetup","ls","lynx","mail","mkinitrd","netstat","nslookup","od","passwd","pgrep","ping","quota","restorecon","rmmod","screen","sed","semanage","smbclient","split","startx","sudo","tee","tftp","wall","wget","which","accept","apt-get","apt-key","apt-sortpkgs","aptitude","awk","clockdiff","cupsenable","dnf","dpkg-reconfigure","dpkg","expr","gcc","gdb","ldconfig","ldd","lpadmin","make","ngrep","nm","ntpdate","objdump","perl","php","protoize","pssh","pstack","readelf","reject","rsync","speedtest-cli","tempfile","test","vdfuse","xargs"]; 

// 还没有爬到的命令：--> ["bye","uucico","uucp","uupick","uuto","git","gitview","mattrib","mc","mcopy","mdel","mdir","mmove","mread","mren","mshowfat","mtoolstest","rhmask","tmpwatch","lndir","mcd","mdeltree","mdu","mlabel","mmd","mmount","mrd","mzip","rmt","cfdisk","ext2ed","fsck.ext2","fsck.minix","fsconf","mbadblocks","mformat","mkdosfs","mkfs.ext2","mkfs.minix","mkfs.msdos","mpartition","sfdisk","symlinks","apmd","aumix","eval","fbset","kbdconfig","liloconfig","minfo","mkkickstart","modinfo","mouseconfig","rdate","setconsole","setenv","setup","sndconfig","SVGAText Mode","timeconfig","adduser","fwhois","gitps","newgrp","procinfo","rwho","sliplogin","suspend","swatch","userconf","vlock","whois","mtype","rgrep","dip","getty","mingetty","ppp-off","smbd(samba daemon)","uulog","uustat","uux","dnsconf","efax","httpd","minicom","netconf","netconfig","pppstats","samba","setserial","shapecfg(shaper configuration)","smbd(samba daemon)","statserial(status ofserial port)","testparm(test parameter)","tty(teletypewriter)","uuname","wall(write all)","ytalk","smbclient(samba client)","pppsetup","dumpkeys","loadkeys","MAKEDEV","rdev","setleds","archive","ctlinnd","getlist","inncheck","mailconf","messages","metamail","mutt","nntpget","pine","slrn","X WINDOWS SYSTEM","reconfig","startx(start X Window)","Xconfigurator","XF86Setup"    ,"nc/netcat","locate/slocate","get_module"]
// 已经存在的命令：----> []
// 名字不对的命令：----> ["ar","locate","slocate","clock","resize","cu","nc"]
// 网站中没有的命令
var empty_command = [];