{"id":40024,"date":"2025-09-05T08:53:22","date_gmt":"2025-09-05T08:53:22","guid":{"rendered":"http:\/\/www.withdata.com\/blog\/?p=40024"},"modified":"2025-09-05T08:53:22","modified_gmt":"2025-09-05T08:53:22","slug":"import-data-from-json-to-postgresql-via-command-line-on-linux","status":"publish","type":"post","link":"https:\/\/www.withdata.com\/blog\/pg-cmd\/import-data-from-json-to-postgresql-via-command-line-on-linux.html","title":{"rendered":"Import data from JSON to PostgreSQL via command line on Linux"},"content":{"rendered":"<p>Want to import data from <a href=\"https:\/\/jsonlines.org\/\">JSON Lines (JSONL)<\/a> to  <a href=\"https:\/\/www.postgresql.org\/\">PostgreSQL<\/a>  via Command Line Interface (CLI) on Linux (Ubuntu\/RedHat\/CentOS&#8230;)?<\/p>\n<p>Using <a href=\"https:\/\/www.withdata.com\/pg-cmd\/\">pg-cmd<\/a>, a Command Line Interface (CLI) client for PostgreSQL, you can import data from JSON Lines to PostgreSQL  easily and fast. Direct Interaction or Scripting and Automation.<\/p>\n<ul>\n<li>No need to install PostgreSQL client library.<\/li>\n<li>Convenient to deploy to cloud. No need to run installation file, just uncompress and run, immediately.<\/li>\n<li>Commands are entered into a terminal or command prompt, accessed from local or remote (like SSH).<\/li>\n<li>Support Windows, Linux, and MacOS.<\/li>\n<\/ul>\n<p><a href=\"#download-top\" onclick=\"dtv.style.display = 'block';\">Download pg-cmd Linux version<\/a>  <a href=\"#download-top\" onclick=\"dtv.style.display = 'block';\"><img decoding=\"async\" src=\"https:\/\/www.withdata.com\/images\/download_3.jpg\" alt=\"Download pg-cmd\" width=\"80\" height=\"22\" style=\"max-width:100%;height:auto;\" \/><\/a> <span id=\"dtv\" style=\"display: none;\"><br \/>\n<a href=\"\/down\/pg-cmd.linux-386.zip\">pg-cmd.linux-386.zip<\/a><br \/>\n<a href=\"\/down\/pg-cmd.linux-amd64.zip\">pg-cmd.linux-amd64.zip<\/a><br \/>\n<a href=\"\/down\/pg-cmd.linux-arm64.zip\">pg-cmd.linux-arm64.zip<\/a><\/p>\n<p><\/span><\/p>\n<p>JSON Lines text format, also called newline-delimited JSON (NDJSON), or Line-delimited JSON (LDJSON). JSON Lines files may be saved with the file extension .jsonl, *.ndjson, *.ldjson.<\/p>\n<h2>Import data from JSON Lines to PostgreSQL  via command line on Linux (Ubuntu\/RedHat\/CentOS&#8230;)<\/h2>\n<p>1. In interactive mode:<\/p>\n<pre>\npg-cmd> load table=media_messages \n      > datafile=f:\\media_messages.json \n      > filetype=json;\n<\/pre>\n<p>2. In batch mode:<\/p>\n<pre>\npg-cmd dsn=\"pan:withdata@192.168.0.102:3306\/test\" task=load table=media_messages datafile=f:\\media_messages.json filetype=json quit=y\n<\/pre>\n<p>&#8220;loadtype=replace&#8221; will delete all data in table before inserting.<\/p>\n<p>See <a href=\"https:\/\/www.withdata.com\/pg-cmd\/load-json.html\">parameters detail<\/a>.<\/p>\n<hr style=\"clear: both;\" \/>\n<p>More about <a href=\"https:\/\/www.withdata.com\/pg-cmd\/\">pg-cmd &#8211; Command Line Interface (CLI) tool for PostgreSQL<\/a><\/p>\n<div id=\"download-bottom\" style=\"clear: both;\">\n<p>Download pg-cmd Linux version<a href=\"#download-bottom\" onclick=\"dbv.style.display = 'block';\"><img decoding=\"async\" src=\"https:\/\/www.withdata.com\/images\/btn_download_green.png\" alt=\"Download pg-cmd\" width=\"165\" height=\"50\" style=\"max-width:100%;height:auto;\" \/><\/a> <span id=\"dbv\" style=\"display: none;\"><br \/>\n<a href=\"\/down\/pg-cmd.linux-386.zip\">pg-cmd.linux-386.zip<\/a><br \/>\n<a href=\"\/down\/pg-cmd.linux-amd64.zip\">pg-cmd.linux-amd64.zip<\/a><br \/>\n<a href=\"\/down\/pg-cmd.linux-arm64.zip\">pg-cmd.linux-arm64.zip<\/a><\/p>\n<p><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Want to import data from JSON Lines (JSONL) to PostgreSQL via Command Line Interface (CLI) on Linux (Ubuntu\/RedHat\/CentOS&#8230;)? Using pg-cmd, a Command Line Interface (CLI) client for PostgreSQL, you can import data from JSON Lines to PostgreSQL easily and fast. Direct Interaction or Scripting and Automation. No need to install PostgreSQL client library. Convenient to [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2555],"tags":[73,6,1418,2553,1370,1435],"class_list":["post-40024","post","type-post","status-publish","format-standard","hentry","category-pg-cmd","tag-command-line","tag-import","tag-json","tag-linux","tag-postgresql","tag-postgresql-import-json"],"_links":{"self":[{"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/posts\/40024","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/comments?post=40024"}],"version-history":[{"count":1,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/posts\/40024\/revisions"}],"predecessor-version":[{"id":40025,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/posts\/40024\/revisions\/40025"}],"wp:attachment":[{"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/media?parent=40024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/categories?post=40024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.withdata.com\/blog\/wp-json\/wp\/v2\/tags?post=40024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}