diff --git a/.bashrc.d/ll b/.bashrc.d/ll
new file mode 100644
index 0000000..343a7fe
--- /dev/null
+++ b/.bashrc.d/ll
@@ -0,0 +1 @@
+if ! alias ll >/dev/null 2>&1; then function ll() { ls -l "${@}"; } && export -f ll; fi
diff --git a/.bashrc.d/psgrep b/.bashrc.d/psgrep
new file mode 100644
index 0000000..1a3818c
--- /dev/null
+++ b/.bashrc.d/psgrep
@@ -0,0 +1 @@
+[[ ! -x $(which psgrep 2>/dev/null) ]] && function psgrep() { ps -ef | grep "${@}" | grep -v ${$}; } && export -f psgrep
diff --git a/.bashrc.d/tree b/.bashrc.d/tree
new file mode 100644
index 0000000..1d6abf1
--- /dev/null
+++ b/.bashrc.d/tree
@@ -0,0 +1 @@
+[[ -x $(which tree 2>/dev/null) ]] && alias tree="tree -AQh --du"