Minor fixes

.shell.d/funs_rc

@@ -191,7 +191,7 @@ bindatasearch()
         return
     fi
 
-    if [ $(du -b Cover.jpg | awk '{print $1}') -gt 1048576 ]; then
+    if [ $(wc -c Cover.jpg | cut -f1 -d' ') -gt 1048576 ]; then
         echo "[$1] file size must not exceed 1MB."
         return
     fi

.zshrc

@@ -2,7 +2,8 @@
 ## Shell Config -- Master File
 ################################################################################
 
-readonly SHELL_CURRENT="$(ps -o command="" $$)"
+## Note that 'ps -o command= $$' gives the same result with parameters.
+readonly SHELL_CURRENT="$(ps -o comm= $$)"
 readonly SHELL_DIR="$HOME/.shell.d"
 
 ## .profile is sourced automatically by most login managers, but we need to