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UGU: Unix Guru Universe - Unix Tip #4525- August 1, 2025
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Unix Tip #4525- August 1, 2025
PROCESS EXECUTION TIME
To find the execution
time of a process,
The 'time' command
will tell you the answer.
'man time'.
Syntax:
time
For Ex:
$ /usr/bin/time find / -name csh.1 -print
real 1:15.5
(time elapsed between
invocation and
termination)
user 0.3
(time spent in user
process code)
sys 3.3
(time spent in system
code)
The executable/command
is run by the 'time'
as a child process and
then elapsed, user,
system time are reported.
There is a csh version
of 'time'. It will
report the time in
different format.
In Solaris 'ptime' gives
more accurate results.
/usr/proc/bin/ptime command/executable [ arg ... ]
This tip generously supported by: M.Nithyanandham@blr.spcnl.co.in
NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.
LAST 5 TIPS
4524
- SUPRESSING BLANK LINES
4523
- CHECKING PROCESS MEMORY
4522
- DUMP TO A FILE
4521
- MAINTAINING LOG AND TMP FILE
4520
- FILES OPENED BY A PROCESS
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