coolcommand: how to extract the directory from a fully qualified file name
Example: FILE=/full/path/to/the/file; echo ${FILE%/*}
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coolcommand: prtconf - how to determine the LPAR partition number and name in IBM AIX
Example: prtconf -L
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coolcommand: how to list the tunable kernel parameters in Sun Solaris
Example: /usr/ccs/bin/nm -x /dev/ksyms | grep OBJ
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coolcommand: mkuser - add a user in IBM AIX
Example: mkuser id='673' pgrp='mqm' groups='mqm' su='true' sugroups='mqm' home='/home/mqm' gecos='MQ Series User' maxage='0' mqm
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