{
    "byline": null,
    "charset": "UTF-8",
    "dir": null,
    "excerpt": "I type the umask command in linux shell and it returns 002 as output.\nI know what for umask command used. But what 002 represents.\nplease help me",
    "lang": null,
    "length": 1444,
    "publishedTime": null,
    "siteName": null,
    "title": ""
}