--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/filters/catWrapper.py	Fri Mar 09 19:37:19 2012 -0500
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+#By, Guruprasad Ananda.
+
+from galaxy import eggs
+import sys, os
+
+def stop_err(msg):
+    sys.stderr.write(msg)
+    sys.exit()
+    
+def main():
+    outfile = sys.argv[1]
+    infile = sys.argv[2]
+    
+    try:
+        fout = open(sys.argv[1],'w')
+    except:
+        stop_err("Output file cannot be opened for writing.")
+        
+    try:
+        fin = open(sys.argv[2],'r')
+    except:
+        stop_err("Input file cannot be opened for reading.")
+    
+    if len(sys.argv) < 4:
+        os.system("cp %s %s" %(infile,outfile))
+        sys.exit()
+    
+    cmdline = "cat %s " %(infile)
+    for inp in sys.argv[3:]:
+        cmdline = cmdline + inp + " "
+    cmdline = cmdline + ">" + outfile
+    try:
+        os.system(cmdline)
+    except:
+        stop_err("Error encountered with cat.")
+        
+if __name__ == "__main__": main()
\ No newline at end of file