cleanups, add manual page

[unix-history] / usr / src / usr.bin / compress / usermem.sh

diff --git a/usr/src/usr.bin/compress/usermem.sh b/usr/src/usr.bin/compress/usermem.sh
index 527f8c6..142d120 100644 (file)
--- a/usr/src/usr.bin/compress/usermem.sh
+++ b/usr/src/usr.bin/compress/usermem.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
 #!/bin/sh -
 #

-#      @(#)usermem.sh  5.2 (Berkeley) %G%
+#      @(#)usermem.sh  5.4 (Berkeley) %G%

 #
 : This shell script snoops around to find the maximum amount of available
 : user memory.  These variables need to be set only if there is no
 #
 : This shell script snoops around to find the maximum amount of available
 : user memory.  These variables need to be set only if there is no


@@ -16,8 +16,25 @@ UNIX=
 CLICKSIZE=512
 eval $*
 
 CLICKSIZE=512
 eval $*
 

+if test -n "$UNIX"
+then
+    : User must have specified it already.
+elif test -r /vmunix
+then
+    UNIX=/vmunix
+    CLICKSIZE=512      # Probably VAX
+elif test -r /edition7
+then
+    UNIX=/edition7
+    CLICKSIZE=2048     # Perkin-Elmer: change to 4096 on a 3205
+elif test -r /unix
+then
+    UNIX=/unix         # Could be anything
+fi
+

 SIZE=0
 SIZE=0

-if test -r /usr/adm/messages   # probably the most transportable
+# messages: probably the most transportable
+if test -r /usr/adm/messages -a -s /usr/adm/messages

 then
     SIZE=`grep avail /usr/adm/messages | sed -n '$s/.*[        ]//p'`
 fi
 then
     SIZE=`grep avail /usr/adm/messages | sed -n '$s/.*[        ]//p'`
 fi


@@ -26,21 +43,6 @@ if test 0$SIZE -le 0         # no SIZE in /usr/adm/messages
 then
     if test -r $KMEM           # Readable KMEM
     then
 then
     if test -r $KMEM           # Readable KMEM
     then

-       if test -n "$UNIX"
-       then
-           : User must have specified it already.
-       elif test -r /vmunix
-       then
-           UNIX=/vmunix
-           CLICKSIZE=512       # Probably VAX
-       elif test -r /edition7
-       then
-           UNIX=/edition7
-           CLICKSIZE=2048      # Perkin-Elmer: change to 4096 on a 3205
-       elif test -r /unix
-       then
-           UNIX=/unix          # Could be anything
-       fi

        if test -n "$UNIX"
        then
            SIZE=`echo maxmem/D | adb $UNIX $KMEM | sed -n '$s/.*[      ]//p'`
        if test -n "$UNIX"
        then
            SIZE=`echo maxmem/D | adb $UNIX $KMEM | sed -n '$s/.*[      ]//p'`