From: WanBingjiang <wanbingjiang@webray.com.cn>
Date: Thu, 5 Feb 2026 09:11:06 +0000 (+0800)
Subject: column: introduce LIBSMARTCOLS_JSON environment argument
X-Git-Tag: v2.43-devel~50^2~4
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b30edbe5f44ad28c44eb3b77d9b4a246d0dd2ba5;p=thirdparty%2Futil-linux.git

column: introduce LIBSMARTCOLS_JSON environment argument
---

diff --git a/text-utils/column.1.adoc b/text-utils/column.1.adoc
index 1abe5967e..b17fb199a 100644
--- a/text-utils/column.1.adoc
+++ b/text-utils/column.1.adoc
@@ -252,7 +252,18 @@ will be colorized by direct color names.
 
 == ENVIRONMENT
 
-The environment variable *COLUMNS* is used to determine the size of the screen if no other information is available.
+*COLUMNS*::
+is used to determine the size of the screen if no other information is available.
+
+*LIBSMARTCOLS_JSON*::
+Controls JSON output format when using *--json*. Supported values:
++
+*compact*::
+Output JSON in compact form (minified, minimal whitespace).
+*lines*::
+Output in JSON Lines format (one JSON object per line).
++
+If unset or set to any other value, pretty-printed JSON is used.
 
 == HISTORY