X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=shell%2Faliases.in;h=69270ccfc261dd4704bda7a20153ff08f6941935;hb=17e1c02c53c9083cf2201c6e4c8ac5d493738f42;hp=2848f737b02f8249c6cffd9e75723a11339d39ab;hpb=33826e397bdecbdcef6d8d04b944733676b794e1;p=config%2Fdotfiles.git

diff --git a/shell/aliases.in b/shell/aliases.in
index 2848f73..69270cc 100644
--- a/shell/aliases.in
+++ b/shell/aliases.in
@@ -37,14 +37,15 @@ alias gri='grep -i'
 alias grr='grep -r'
 alias grri='grep -ri'
 alias mc='make clean'
-alias mj='make -j'
+alias mj='make -j$(nproc)'
 alias mu=mutt
 alias rs=reset # like git's reset alias
 alias sa='ssh-add -t 1h'
 alias te=tree
-# systemd ... (sc is provided as shell script for better completoin)
+# systemd ... (sc is provided as shell script for better completion)
 alias jc=journalctl
 alias lc=loginctl
+alias mc=machinectl
 
 
 unalias mv cp 2>/dev/null
@@ -120,4 +121,14 @@ info() {
     command info "$@" 2>/dev/null | less
 }
 
+# Using su (or sudo) as root to a less privileged user might allow the other
+# user to run arbitrary commands as root. See also Debian bugs #628843 and
+# #657784.
+if test "`id -u`" -eq 0; then
+    su() {
+        echo 'never su as root' >&2
+        return 1
+    }
+fi
+
 # vim: ft=sh