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-rw-r--r--doc/man/serd-pipe.126
1 files changed, 26 insertions, 0 deletions
diff --git a/doc/man/serd-pipe.1 b/doc/man/serd-pipe.1
index f5908c1d..ae3e6620 100644
--- a/doc/man/serd-pipe.1
+++ b/doc/man/serd-pipe.1
@@ -165,6 +165,18 @@ Variables can be written in SPARQL style, for example
or
.Dq $var .
.El
+.Sh ENVIRONMENT
+Errors and warnings are printed in color by default if the output is a terminal.
+This can be overridden with environment variables:
+.Pp
+.Bl -tag -compact -width 14n
+.It Ev NO_COLOR
+If present (regardless of value), color is disabled.
+.It Ev CLICOLOR
+If set to 0, color is disabled.
+.It Ev CLICOLOR_FORCE
+If set to anything other than 0, color is forced on.
+.El
.Sh EXIT STATUS
.Nm
exits with a status of 0, or non-zero if an error occurred.
@@ -218,6 +230,20 @@ exits with a status of 0, or non-zero if an error occurred.
.%T RDF 1.1 Turtle
.Re
.Lk https://www.w3.org/TR/turtle/
+.It
+.Rs
+.%A Jan Niklas Hasse
+.%T CLICOLOR
+.%D April 2015
+.Re
+.Lk https://bixense.com/clicolors/
+.It
+.Rs
+.%A Joshua Stein
+.%T NO_COLOR
+.%D August 2017
+.Re
+.Lk http://no-color.org/
.El
.Sh AUTHORS
.Nm