zshrc: do not alias 'mdstat' when /proc/mdstat doesn't exist

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 1376e4e..775293d 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -2542,7 +2542,10 @@ else
     alias l='command ls -l'
 fi
 
-alias mdstat='cat /proc/mdstat'
+if [[ -r /proc/mdstat ]]; then
+    alias mdstat='cat /proc/mdstat'
+fi
+
 alias ...='cd ../../'
 
 # generate alias named "$KERNELVERSION-reboot" so you can use boot with kexec: