crontab on celerra output script failed

Hello

I've crontabed a script containing this line :

/nas/bin/server_cifs server_2 -option audit,full|grep -e AUDIT -e DMZ -e uid>>/home/nasadmin/outputfilecifs.grep

In running ./myscript, it works

When crontab launch the script, I get this in the outputfilecifs.grep file :

SecuredCLISecurityFile.xml SecuredCLIXMLEncrypted.key capture.sh clartool_nas1-ns40-s1p1-intranet.rpt collect_nas.ksh config.rpt copie.ksh cpgInput.rpt listML lists-tar-nas1-ns40-s1p1-intranet-1371817389-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372062546-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372064136-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372064793-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372066683-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372067655-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372346278-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372347611-1.tar.gz lists-tar-nas1-ns40-s1p1-intranet-1372348732-1.tar.gz nas_cspoller.tar.gz nas_fs nbsnas_cspoller.tar.gz outputfilecifs.grep outputfilecifs.sh outputfilecifs.sh.log paramS1.txt pre-upgrade.rpt precksums.rpt predffs.rpt preexp.rpt premtfs.rpt preparams.server_2.rpt presite.rpt presitecksum.rpt preupgrd.rpt readme.txt server_2.pre-sysconfig.rpt tmp_sfdisk trace.rpt upgrd-ckv11-10.bin upgrd-ckv11-10.tar user.list usrm.groups usrm.passwd

I've compared the environnement and only the :

SHLVL ist at 2 in user crontab env and at 1 in user shell env

and these parm are added in user shell env

What is missing to run weel this script in crontab ?

Thanks