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-rw-r--r--Doc/Zsh/mod_zpty.yo5
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/Zsh/mod_zpty.yo b/Doc/Zsh/mod_zpty.yo
index 0c1558056..664e2fabd 100644
--- a/Doc/Zsh/mod_zpty.yo
+++ b/Doc/Zsh/mod_zpty.yo
@@ -9,6 +9,7 @@ xitem(tt(zpty) [ tt(-e) ] [ tt(-b) ] var(name) var(command) [ var(args ...) ])
 xitem(tt(zpty) tt(-d) [ var(names) ... ])
 xitem(tt(zpty) tt(-w) [ tt(-n) ] var(name) var(strings ...))
 xitem(tt(zpty) tt(-r) var(name) [ var(param) [ var(pattern) ] ])
+xitem(tt(zpty) tt(-t) var(name))
 item(tt(zpty) [ tt(-L) ])(
 In the first form, the var(command) is started with the var(args) as
 arguments.  The command runs under a newly assigned pseudo-terminal; this
@@ -35,6 +36,10 @@ read will be put in the parameter named var(param).  If the
 var(pattern) is also given, output will be read until the whole string 
 read matches the var(pattern).
 
+The tt(-t) option can be used to test whether the command var(name) is 
+still running.  It returns a zero value if the command is running and
+a non-zero value otherwise.
+
 The last form without any arguments is used to list the commands
 currently defined.  If the tt(-L) option is given, this is done in the
 form of calls to the tt(zpty) builtin.