diff --git a/bash/alias/apt.sh b/bash/alias/apt.sh
index 5de980c..c4a0a7a 100644
--- a/bash/alias/apt.sh
+++ b/bash/alias/apt.sh
@@ -1,23 +1,71 @@
 # show package information
-alias ac='apt-cache show'
-
-# search package
-alias acs='apt-cache search'
+alias ac="\
+apt-cache \
+show \
+"
 
 # package versions policy
-alias acp='apt-cache policy'
+alias acp="\
+apt-cache \
+policy \
+"
 
-# update packages catalog
-alias agud='apt-get update'
+# search package
+alias acs="\
+apt-cache \
+search \
+"
 
-# upgrade forbidding package installation or removal
-alias agug='apt-get upgrade'
+#
+alias agap="\
+apt-get \
+autopurge \
+"
 
-# upgrade allowing package installation or removal
-alias agdu='apt-get dist-upgrade'
-
-# install packages
-alias agi='apt-get install'
+#
+alias agar="\
+apt-get \
+autoremove \
+"
 
 # clean packages cache
-alias agc='apt-get clean;apt-get autoremove'
+alias agc="\
+apt-get \
+clean \
+"
+
+# upgrade allowing package installation or removal
+alias agdu="\
+apt-get \
+dist-upgrade \
+"
+
+# install packages
+alias agi="\
+apt-get \
+install \
+"
+
+#
+alias agp="\
+apt-get \
+purge \
+"
+
+#
+alias agr="\
+apt-get \
+remove \
+"
+
+# update packages catalog
+alias agud="\
+apt-get \
+update \
+"
+
+# upgrade forbidding package installation or removal
+alias agug="\
+apt-get \
+upgrade \
+"