String manipulation in bash shell

I am using a script to move a particular file from one location to another location, which retrieves that file name from a log file. When I run this command in the shell prompt, it's okay.

Example: When I run this command:

tail -2 /pretupsvar/pretups_weblogs/DirectPayOutErrorLog.log |
    grep 'MESSAGE: SQL Exception:Invalid column index' |
    sed 's/.*FILE NAME: //;s/].*//;s/ /\\ /g'

the output is :

userList1305816669650_PB_PBZONE_DLMP_RLMP_ETOPUP_WEEL\ ONE\ PAYOUT.xls

However, when I run this command:

cp `tail -2 /pretupsvar/pretups_weblogs/DirectPayOutErrorLog.log |
    grep 'MESSAGE: SQL Exception:Invalid column index' |
    sed 's/.*FILE NAME: //;s/].*//;s/ /\\ /g'` /pretupshome/

the output is:

cp: cannot stat `userList1305816669650_PB_PBZONE_DLMP_RLMP_ETOPUP_WEEL':
    No such file or directory
cp: cannot stat `ONE': No such file or directory
cp: cannot stat `PAYOUT.xls': No such file or directory

Actually, I do the same in script which is like:

fname=`tail -2 /pretupsvar/pretups_weblogs/DirectPayOutErrorLog.log |
    grep 'MESSAGE: SQL Exception:Invalid column index' |
    sed 's/.*FILE NAME: //;s/].*//;s/ /\\ /g'`

mv /pretupsvar/pretups_weblogs/BulkComissionPayout/UploadOffline/$fname
    /pretupsvar/pretups_weblogs/BulkComissionPayo开发者_如何学Pythonut/Errorfile/

But it can not move this file, showing the same error in above.

Kindly help me: how can I move the same in a script?

Try out putting it inside quotes:

fname=`tail -2 /pretupsvar/pretups_weblogs/DirectPayOutErrorLog.log |
    grep 'MESSAGE: SQL Exception:Invalid column index' |
    sed 's/.*FILE NAME: //;s/].*//'`

mv "/pretupsvar/pretups_weblogs/BulkComissionPayout/UploadOffline/$fname"
    /pretupsvar/pretups_weblogs/BulkComissionPayout/Errorfile/

The path /pretupsvar/pretups_weblogs/BulkComissionPayout/UploadOffline/$fname has spaces when resolved.

I think putting this statement inside quotes should work.

I think you should not do the space replacement (s/ /\\ /g) if you want to execute your command this way.