diff --git a/cheatsheets/php b/cheatsheets/php
index 187b099..4130fc7 100644
--- a/cheatsheets/php
+++ b/cheatsheets/php
@@ -1,17 +1,17 @@
-To view the php version:
+# To view the php version:
 php -v
 
-To view the installed php modules:
+# To view the installed php modules:
 php -m
 
-To enter an interactive shell:
+# To enter an interactive shell:
 php -a
 
-To view phpinfo() information:
+# To view phpinfo() information:
 php -i
 
-To locate the system's php.ini files:
+# To locate the system's php.ini files:
 php -i | grep "php.ini"
 
-To start a local webserver for the cwd on port 3000 (requires php >= 5.4):
+# To start a local webserver for the cwd on port 3000 (requires php >= 5.4):
 php -S localhost:3000
diff --git a/cheatsheets/sed b/cheatsheets/sed
index 061bf3d..6806866 100644
--- a/cheatsheets/sed
+++ b/cheatsheets/sed
@@ -1,8 +1,8 @@
-To replace all occurrences of "day" with "night" and write to stdout:
+# To replace all occurrences of "day" with "night" and write to stdout:
 sed 's/day/night/g' file.txt
 
-To replace all occurrences of "day" with "night" within file.txt:
+# To replace all occurrences of "day" with "night" within file.txt:
 sed -i 's/day/night/g' file.txt
 
-To replace all occurrences of "day" with "night" on stdin:
+# To replace all occurrences of "day" with "night" on stdin:
 echo 'It is daytime' | sed 's/day/night/g'
diff --git a/cheatsheets/truncate b/cheatsheets/truncate
index f871c76..17bc76e 100644
--- a/cheatsheets/truncate
+++ b/cheatsheets/truncate
@@ -1,10 +1,10 @@
-To clear the contents from a file:
+# To clear the contents from a file:
 truncate -s 0 file.txt
 
-To truncate a file to 100 bytes:
+# To truncate a file to 100 bytes:
 truncate -s 100 file.txt
 
-To truncate a file to 100 KB:
+# To truncate a file to 100 KB:
 truncate -s 100K file.txt
 
-(M, G, T, P, E, Z, and Y may be used in place of "K" as required.)
+# (M, G, T, P, E, Z, and Y may be used in place of "K" as required.)
diff --git a/cheatsheets/yum b/cheatsheets/yum
index 11397ad..8cc52f7 100644
--- a/cheatsheets/yum
+++ b/cheatsheets/yum
@@ -1,29 +1,28 @@
-To install the latest version of a package:
+# To install the latest version of a package:
 yum install <package name>
 
-To perform a local install:
+# To perform a local install:
 yum localinstall <package name>
 
-To remove a package:
+# To remove a package:
 yum remove <package name>
 
-To search for a package:
+# To search for a package:
 yum search <package name>
 
-To find what package installs a program:
+# To find what package installs a program:
 yum whatprovides </path/to/program>
 
-To find the dependencies of a package:
+# To find the dependencies of a package:
 yum deplist <package name>
 
-To find information about a package:
+# To find information about a package:
 yum info <package name>
 
-List currently enabled repositories:
+# List currently enabled repositories:
 yum repolist
 
-To download the source RPM for a package:
+# To download the source RPM for a package:
 yumdownloader --source <package name>
 
-(You have to install yumdownloader first, which is installed by the
-yum-utils package)
+# (You have to install yumdownloader first, which is installed by the yum-utils package)