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this command often precedes logic that modifies the
process table. Because modifications to the process
table are usually not safe, the presence of ps in a control
script is a good indicator that the script needs closer
examination to determine if the surrounding logic is safe.
pwd
Yes --
rm
Yes --
rmdir
Yes --
sed
Yes --
swlist, swmodify &
swverify
Yes --
swremove
Varies
It is safe to swremove software that has is_drd_safe
attribute set. It is safe to execute swremove in the
update_prep script. It is safe to execute swremove –
x run_scripts=false.
tail
Yes --
umount
Yes Although unmount is DRD-safe, it should not be used in
SD control scripts.
uname
Varies
Whether or not the use of uname is DRD-safe depends
on which options are sued with the command. As such
the control script needs to be examined to determine if it
is using uname in a safe manner.
Use of the following options is DRD-safe:
• Machine identification/node name (-i)
• License level (-l)
• Machine hardware and model names (-m)
• Node name (-n)
• Name of operating system (-s)
Use of the following fields is NOT DRD-safe:
• Release level (-r)
• Version level (-v)
• Changing of node name (-S)
• All (-a)
wc
Yes --
what
Yes --
© 2008 Hewlett-Packard Development Company, L.P. The information contained
herein is subject to change without notice. The only warranties for HP products
and services are set forth in the express warranty statements accompanying such
products and services. Nothing herein should be construed as constituting an
additional warranty. HP shall not be liable for technical or editorial errors or
omissions contained herein.
5992-4030, May 2008