crontab example.

10 10 19 11 * /data/lgou/LMCX-1/rxte/DataAnalysis/general/ErrorAnalysis/error1/wrapper >& /dev/null

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contents of wrapper:

#!/bin/csh
#source /home/lgou/.cshrc
setenv HEADAS /data/lgou/heasoft/headas-6.4/x86_64-unknown-linux-gnu
source $HEADAS/headas-init.csh
/data/lgou/LMCX-1/rxte/DataAnalysis/general/ErrorAnalysis/error1/error_analysis_all1.pl