ijk@cbnewsh.ATT.COM (ihor.j.kinal) (06/12/89)
Is there any way that I can use the date command to display the
actual UNIX time???
I have RTFM, and all the date options seem to display the
date in another format... it seems strange that I can't get
the actual time [i.e., not have date perform any conversions].
YES, I KNOW I CAN DO THIS WITH A SIMPLE 7 LINE C PROGRAM - BUT
CAN I DO THIS WITH JUST SHELL COMMANDS?? Or possibly awk [old
awk please, since the newer awk hasn't been released yet to our customers]?
I'm using UNIX HP 5.2, on a HP 850. Pretty standard UNIX, with some
additional Berkley enhancements.
Thanks much,
Ihor Kinal
cbnewsh!ijk
{att!violin!ijk}gph@hpsemc.HP.COM (Paul Houtz) (06/14/89)
I'll just give you a hack I have to put the time and date in a non-24 hour
format into variables. I do this so I can use them to create dated filenames.
#!/bin/ksh
# This is a korn shell script.
# Define a function "clock" which returns the clock time
# in am or pm
clock () {
# Put the time part of date into $CURTIME. Could be done with
# cut too...
CURTIME=`date | awk '{print $4}'`
# Use awk again to change 13:00 to 1:00 pm
print -n $CURTIME | awk 'BEGIN {FS = ":" }{if ($1 > 12) print $1-12 ":" $2 " pm" }{if ($1 <= 12) print $1 ":" $2 " am"}'
}
# Okay, now you want to invoke the function to put readable time
# into $time
time=`clock`
# Then use awk again to get the day month and year into a
# separate variable called $day
day=`date | awk '{print $1 " " $2 " " $3 }'`
# Then print them both
print -n "$day $time"
# end of script
This is an unnecessarily complicated way of doing what you want. I have
it set up this way because I want those particular variables created. However,
it should give you the idea!!
Substitue "echo" for "print" everywhere except inside the awk commands, and
change the function into a separate script or here document, and you will
have a bourne shell script that works to.
Hope this helps!
Paul Houtz
HP Technology Access Center
10670 N. Tantau Avenue
Cupertino, Ca 95014
(408) 725-3864
hplabs!hpda!hpsemc!gph
gph%hpsemc@hplabs.HP.COMvijay@bradley.UUCP (06/14/89)
Ihor Kinal writes:--> >/* ---------- "Getting UNIX time from the shell" ---------- */ >Is there any way that I can use the date command to display the >actual UNIX time??? [...] >YES, I KNOW I CAN DO THIS WITH A SIMPLE 7 LINE C PROGRAM - BUT >CAN I DO THIS WITH JUST SHELL COMMANDS?? [...] >Ihor Kinal >cbnewsh!ijk >{att!violin!ijk} You do not need to write a C program to do that. A one liner shell command will do it for you (In C Shell or Bourne Shell). All you need is : date | cut -f4,5 -d" " That will give you the time. If it's a hassle having to type that command whenever you want the time, add this to your .profile : time=`date | cut -f4,5 -d" "` export time or if you are using C shell, add this to your .login : setenv time `date | cut -f4,5 -d" "` Or alternatively you can create a shell file called time with the command date | cut -f4,5 -d" " Then make that file executable and you will be set. Take your pick...... =============================================================I / / E-mail: vijay@bradley.edu I / / * * ___ ...!uiucdcs!bradley!vijay I / / / / / / / / I===================================I //___/___/__/_\/__/__/ I Exxon - Our gasoline contains no / / I sea water. Guaranteed!! / / I __/ __/ I ===============================================================
jpr@dasys1.UUCP (Jean-Pierre Radley) (06/24/89)
In article <10800028@bradley> vijay@bradley.UUCP writes: >You do not need to write a C program to do that. A one liner >shell command will do it for you (In C Shell or Bourne Shell). >All you need is : > > date | cut -f4,5 -d" " > I never use two processes where one will do. date +%T gives me the time. (Oh well, so it doesn't give me my timezone, but that's really an invariant, no?) -- Jean-Pierre Radley CIS: 72160,1341 jpr@jpradley.UUCP