{"id":109181,"date":"2021-02-18T16:23:58","date_gmt":"2021-02-18T10:53:58","guid":{"rendered":"https:\/\/www.vskills.in\/certification\/tutorial\/?page_id=109181"},"modified":"2024-04-12T14:30:26","modified_gmt":"2024-04-12T09:00:26","slug":"hdfs-filesystem-operations","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/hdfs-filesystem-operations\/","title":{"rendered":"HDFS Filesystem Operations"},"content":{"rendered":"\n<p>Few basic Hadoop HDFS operations managed by shell commands given by command line interface are<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Create a directory in HDFS at given path(s).<\/li><\/ul>\n\n\n\n<p>Usage: hadoop fs -mkdir &lt;paths&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -mkdir \/user\/saurzcode\/dir1 \/user\/saurzcode\/dir2<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>List the contents of a directory.<\/li><\/ul>\n\n\n\n<p>Usage : hadoop fs -ls &lt;args&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -ls \/user\/saurzcode<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Upload and download a file in HDFS.<\/li><\/ul>\n\n\n\n<p>Upload: hadoop fs -put:<\/p>\n\n\n\n<p>Copy single src file, or multiple src files from local file system to the Hadoop data file system<\/p>\n\n\n\n<p>Usage: hadoop fs -put &lt;localsrc&gt; &#8230; &lt;HDFS_dest_Path&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -put \/home\/saurzcode\/Samplefile.txt \/user\/saurzcode\/dir3\/<\/p>\n\n\n\n<p>Download:<\/p>\n\n\n\n<p>hadoop fs -get:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Copies\/Downloads files to the local file system<\/li><\/ul>\n\n\n\n<p>Usage: hadoop fs -get &lt;hdfs_src&gt; &lt;localdst&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -get \/user\/saurzcode\/dir3\/Samplefile.txt \/home\/<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>See contents of a file<\/li><\/ul>\n\n\n\n<p>Same as unix cat command:<\/p>\n\n\n\n<p>Usage: hadoop fs -cat &lt;path[filename]&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -cat \/user\/saurzcode\/dir1\/abc.txt<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Copy a file from source to destination<\/li><\/ul>\n\n\n\n<p>This command allows multiple sources as well in which case the destination must be a directory.<\/p>\n\n\n\n<p>Usage: hadoop fs -cp &lt;source&gt; &lt;dest&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -cp \/user\/saurzcode\/dir1\/abc.txt \/user\/saurzcode\/dir2<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Copy a file from\/To Local file system to HDFS<\/li><\/ul>\n\n\n\n<p>copyFromLocal<\/p>\n\n\n\n<p>Usage: hadoop fs -copyFromLocal &lt;localsrc&gt; URI<\/p>\n\n\n\n<p>Example: hadoop fs -copyFromLocal \/home\/saurzcode\/abc.txt \/user\/saurzcode\/abc.txt<\/p>\n\n\n\n<p>Similar to put command, except that the source is restricted to a local file reference.<\/p>\n\n\n\n<p>copyToLocal<\/p>\n\n\n\n<p>Usage: hadoop fs -copyToLocal [-ignorecrc] [-crc] URI &lt;localdst&gt;<\/p>\n\n\n\n<p>Similar to get command, except that the destination is restricted to a local file reference.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Move file from source to destination.<\/li><\/ul>\n\n\n\n<p>Moving files across filesystem is not permitted.<\/p>\n\n\n\n<p>Usage : hadoop fs -mv &lt;src&gt; &lt;dest&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -mv \/user\/saurzcode\/dir1\/abc.txt \/user\/saurzcode\/dir2<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Remove a file or directory in HDFS.<\/li><\/ul>\n\n\n\n<p>Remove files specified as argument. Deletes directory only when it is empty<\/p>\n\n\n\n<p>Usage : hadoop fs -rm &lt;arg&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -rm \/user\/saurzcode\/dir1\/abc.txt<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Recursive version of delete.<\/li><\/ul>\n\n\n\n<p>Usage : hadoop fs -rmr &lt;arg&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -rmr \/user\/saurzcode\/<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Display last few lines of a file.<\/li><\/ul>\n\n\n\n<p>Similar to tail command in Unix.<\/p>\n\n\n\n<p>Usage : hadoop fs -tail &lt;path[filename]&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -tail \/user\/saurzcode\/dir1\/abc.txt<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Display the aggregate length of a file.<\/li><\/ul>\n\n\n\n<p>Usage : hadoop fs -du &lt;path&gt;<\/p>\n\n\n\n<p>Example: hadoop fs -du \/user\/saurzcode\/dir1\/abc.txt<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Few basic Hadoop HDFS operations managed by shell commands given by command line interface are Create a directory in HDFS at given path(s). Usage: hadoop fs -mkdir &lt;paths&gt; Example: hadoop fs -mkdir \/user\/saurzcode\/dir1 \/user\/saurzcode\/dir2 List the contents of a directory. Usage : hadoop fs -ls &lt;args&gt; Example: hadoop fs -ls \/user\/saurzcode Upload and download a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-109181","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HDFS Filesystem Operations - Tutorial<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vskills.in\/certification\/tutorial\/hdfs-filesystem-operations\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HDFS Filesystem Operations - Tutorial\" \/>\n<meta property=\"og:description\" content=\"Few basic Hadoop HDFS operations managed by shell commands given by command line interface are Create a directory in HDFS at given path(s). 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