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-rw-r--r--src/nix-env/help.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt
index 16e47a73e3ac..b10c4b49243b 100644
--- a/src/nix-env/help.txt
+++ b/src/nix-env/help.txt
@@ -52,6 +52,7 @@ Query sources:
 
 Query flags:
 
+  --xml: show output in XML format
   --status / -s: print installed/present status
   --no-name: hide derivation names
   --attr / -A: shows the unambiguous attribute name of the
@@ -60,6 +61,8 @@ Query flags:
   --compare-versions / -c: compare version to available or installed
   --drv-path: print path of derivation
   --out-path: print path of derivation output
+  --description: print description
+  --meta: print all meta attributes (only with --xml)
   --prebuilt-only: only show derivations whose prebuilt binaries are
       available on this machine or are downloadable