--- a/src/orca/debug.py
+++ b/src/orca/debug.py
@@ -474,7 +474,7 @@
     return traceit
 
 def getOpenFDCount(pid):
-    procs = subprocess.check_output([ 'lsof', '-w', '-Ff', '-p', str(pid)])
+    procs = subprocess.check_output([ '@lsof@', '-w', '-Ff', '-p', str(pid)])
     procs = procs.decode('UTF-8').split('\n')
     files = list(filter(lambda s: s and s[0] == 'f' and s[1:].isdigit(), procs))
 
@@ -482,7 +482,7 @@
 
 def getCmdline(pid):
     try:
-        openFile = os.popen('cat /proc/%s/cmdline' % pid)
+        openFile = os.popen('@cat@ /proc/%s/cmdline' % pid)
         cmdline = openFile.read()
         openFile.close()
     except:
@@ -492,7 +492,7 @@
     return cmdline
 
 def pidOf(procName):
-    openFile = subprocess.Popen('pgrep %s' % procName,
+    openFile = subprocess.Popen('@pgrep@ %s' % procName,
                                 shell=True,
                                 stdout=subprocess.PIPE).stdout
     pids = openFile.read()
--- a/src/orca/orca.py
+++ b/src/orca/orca.py
@@ -239,7 +239,7 @@
 
 def _setXmodmap(xkbmap):
     """Set the keyboard map using xkbcomp."""
-    p = subprocess.Popen(['xkbcomp', '-w0', '-', os.environ['DISPLAY']],
+    p = subprocess.Popen(['@xkbcomp@', '-w0', '-', os.environ['DISPLAY']],
         stdin=subprocess.PIPE, stdout=None, stderr=None)
     p.communicate(xkbmap)
 
@@ -297,7 +297,7 @@
     """
 
     global _originalXmodmap
-    _originalXmodmap = subprocess.check_output(['xkbcomp', os.environ['DISPLAY'], '-'])
+    _originalXmodmap = subprocess.check_output(['@xkbcomp@', os.environ['DISPLAY'], '-'])
 
 def _restoreXmodmap(keyList=[]):
     """Restore the original xmodmap values for the keys in keyList.
@@ -309,7 +309,7 @@
 
     global _capsLockCleared
     _capsLockCleared = False
-    p = subprocess.Popen(['xkbcomp', '-w0', '-', os.environ['DISPLAY']],
+    p = subprocess.Popen(['@xkbcomp@', '-w0', '-', os.environ['DISPLAY']],
         stdin=subprocess.PIPE, stdout=None, stderr=None)
     p.communicate(_originalXmodmap)
 
--- a/src/orca/orca_bin.py.in
+++ b/src/orca/orca_bin.py.in
@@ -59,7 +59,7 @@
                 name = "[DEAD]"
 
             try:
-                cmdline = subprocess.getoutput('cat /proc/%s/cmdline' % pid)
+                cmdline = subprocess.getoutput('@cat@ /proc/%s/cmdline' % pid)
             except:
                 cmdline = '(exception encountered)'
             else:
@@ -192,7 +192,7 @@
 def otherOrcas():
     """Returns the pid of any other instances of Orca owned by this user."""
 
-    openFile = subprocess.Popen('pgrep -u %s orca' % os.getuid(),
+    openFile = subprocess.Popen('@pgrep@ -u %s orca' % os.getuid(),
                                 shell=True,
                                 stdout=subprocess.PIPE).stdout
     pids = openFile.read()