Note that this appeared at least as early as PWB UNIX.

Use the literal string 'PWB UNIX', as we still have no .At macro for it.

10 files changed, 22 insertions, 12 deletions

diff --git a/usr.bin/csplit/csplit.1 b/usr.bin/csplit/csplit.1
index 84ca52c..1a0a22e 100644
--- a/usr.bin/csplit/csplit.1
+++ b/usr.bin/csplit/csplit.1
@@ -144,6 +144,10 @@ Split standard input after the first 99 lines and every 100 lines thereafter:
 .Xr sed 1 ,
 .Xr split 1 ,
 .Xr re_format 7
+.Sh HISTORY
+A
+.Nm
+command appeared in PWB UNIX.
 .Sh STANDARDS
 The
 .Nm
diff --git a/usr.bin/head/head.1 b/usr.bin/head/head.1
index 9d233d3..262ad20 100644
--- a/usr.bin/head/head.1
+++ b/usr.bin/head/head.1
@@ -66,5 +66,4 @@ is the name of the file.
 .Sh HISTORY
 The
 .Nm
-command appeared in
-.Bx 3.0 .
+command appeared in PWB UNIX.
diff --git a/usr.bin/m4/m4.1 b/usr.bin/m4/m4.1
index dc734d3..3307b87 100644
--- a/usr.bin/m4/m4.1
+++ b/usr.bin/m4/m4.1
@@ -404,8 +404,7 @@ conforms to
 .Sh HISTORY
 An
 .Nm
-command appeared in
-.At v7 .
+command appeared in PWB UNIX.
 .Sh AUTHORS
 .An -nosplit
 .An Ozan Yigit Aq oz@sis.yorku.ca
diff --git a/usr.bin/tabs/tabs.1 b/usr.bin/tabs/tabs.1
index 04baf09..9874bca 100644
--- a/usr.bin/tabs/tabs.1
+++ b/usr.bin/tabs/tabs.1
@@ -151,8 +151,7 @@ utility conforms to
 .Sh HISTORY
 A
 .Nm
-utility appeared in
-.At v7 .
+utility appeared in PWB UNIX.
 This implementation was introduced in
 .Fx 5.0 .
 .Sh BUGS
diff --git a/usr.bin/tail/tail.1 b/usr.bin/tail/tail.1
index 0439ca4..482f420 100644
--- a/usr.bin/tail/tail.1
+++ b/usr.bin/tail/tail.1
@@ -180,5 +180,4 @@ option and display the last 4 lines of the input.
 .Sh HISTORY
 A
 .Nm
-command appeared in
-.At v7 .
+command appeared in PWB UNIX.
diff --git a/usr.bin/uname/uname.1 b/usr.bin/uname/uname.1
index f1a2c21..82ba0d4 100644
--- a/usr.bin/uname/uname.1
+++ b/usr.bin/uname/uname.1
@@ -86,8 +86,7 @@ output is written on a single line, separated by spaces.
 .Sh HISTORY
 The
 .Nm
-command appeared in
-.At v7 .
+command appeared in PWB UNIX.
 .Sh STANDARDS
 The
 .Nm
diff --git a/usr.bin/uniq/uniq.1 b/usr.bin/uniq/uniq.1
index e19bed6..7cf1192 100644
--- a/usr.bin/uniq/uniq.1
+++ b/usr.bin/uniq/uniq.1
@@ -135,6 +135,10 @@ and
 options have been deprecated but are still supported in this implementation.
 .Sh SEE ALSO
 .Xr sort 1
+.Sh HISTORY
+A
+.Nm
+command appeared in PWB UNIX.
 .Sh STANDARDS
 The
 .Nm
diff --git a/usr.bin/wall/wall.1 b/usr.bin/wall/wall.1
index 7759f76..a170aba 100644
--- a/usr.bin/wall/wall.1
+++ b/usr.bin/wall/wall.1
@@ -68,5 +68,4 @@ receive the message.
 .Sh HISTORY
 A
 .Nm
-command appeared in
-.At v7 .
+command appeared in PWB UNIX.
diff --git a/usr.bin/xargs/xargs.1 b/usr.bin/xargs/xargs.1
index e885652..6c6e1d4 100644
--- a/usr.bin/xargs/xargs.1
+++ b/usr.bin/xargs/xargs.1
@@ -279,6 +279,10 @@ and
 options are non-standard
 .Fx
 extensions which may not be available on other operating systems.
+.Sh HISTORY
+The
+.Nm
+command appeared in PWB UNIX.
 .Sh BUGS
 If
 .Ar utility
diff --git a/usr.bin/yacc/yacc.1 b/usr.bin/yacc/yacc.1
index 1db0a34..00b50ca 100644
--- a/usr.bin/yacc/yacc.1
+++ b/usr.bin/yacc/yacc.1
@@ -157,6 +157,10 @@ conflicts,
 the number of conflicts is reported on standard error.
 .Sh SEE ALSO
 .Xr yyfix 1
+.Sh HISTORY
+A
+.Nm
+command appeared in PWB UNIX.
 .Sh STANDARDS
 The
 .Nm