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Old 12-22-2009, 11:58 AM   #1
Ichabod7
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Registered: Dec 2009
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Question output to /dev/null in shell script for multiple processes


I am modifying a cron script that was created by another user. The script tars and gzips a directory and then encrypts the file. The prior user had separate lines, one for creating the tarball and one for encrypting the file.

For ease of maintenance and clarity, I have combined these into one line of code:

tar pcz /directory/ | openssl des3 -salt -k password > /backupdir/file.tar.gz.des3 >> /dev/null 2>&1

This works fine, but sends output from the tar process to the screen. In this case, one line "tar: Removing leading `/' from member names"

Anyone know how I can also send the tar output to /dev/null?
 
Old 12-22-2009, 12:26 PM   #2
GooseYArd
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Location: Reston, VA
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Quote:
Originally Posted by Ichabod7 View Post
I am modifying a cron script that was created by another user. The script tars and gzips a directory and then encrypts the file. The prior user had separate lines, one for creating the tarball and one for encrypting the file.

For ease of maintenance and clarity, I have combined these into one line of code:

tar pcz /directory/ | openssl des3 -salt -k password > /backupdir/file.tar.gz.des3 >> /dev/null 2>&1

This works fine, but sends output from the tar process to the screen. In this case, one line "tar: Removing leading `/' from member names"

Anyone know how I can also send the tar output to /dev/null?
try:

tar pcz /directory/ 2>/dev/null | openssl des3 -salt -k password > /backupdir/file.tar.gz.des3 >> /dev/null 2>&1

.andy
 
Old 12-22-2009, 12:38 PM   #3
Ichabod7
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Works perfectly. Thanks.
 
  


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