I've got a script at the moment that looks like this:
Code:
if [ $submenunum -eq 6 ]
then
echo "How many hours would you like users to have logged in for? (single digits)"
read hours
tim=
echo "These are the users who were logged in for $hours hours:"
echo "$tim"
fi
For the 6th option in this particular menu script I'm trying to get the following command:
Code:
last | grep '(02:'
to fetch from the last file all logins of a certain amount of hours, but I am trying to provoke the user to type in the particular amount of hours they want to see. So where I have the variable tim, I expected this to work:
Code:
tim=$(last | grep '(0$hours:')
but it doesn't seem to want to comprehend having an open bracket inside the grep, without a closed one. It does work without the brackets, but then shows not only the login lengths matching the hours, but also the actual timestamps aswell, which I don't want.
How can I make the grep work inside the variable?
Cheers for any help in advance, and since this is my first query here and may have some more, is it better to create a new topic each time or shall I continue to use this thread?
Is there a way to grep for something and then print out 10 lines after it.
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Hello.
I have a dir of 1500+ dir. In these dirs is a file host, with a tag <x_tag>.
I need to :
1. grep for all dir that contain this host file that contain <x_tag>
2. print a list of these host files containing <x_tag>
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grep error this.log.
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Dear Experts,
Need your help.
Typically we use "grep" to search and display a pattern in a txt file.
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For example.
File has 10,000,000 lines in it out of which there is a particular line which... (1 Reply)
Hello Friends,
I have a password file at /etc/password.bak in which the fields are present in the below format i.e. each field is seperated by ":"
vbjr3:x:1007:1007:student users:/home/vbjr3:/bin/bash
dbhyt2:x:1008:1008:student users:/home/dbhyt2:/bin/bash
bbwe3:x:1009:1009:student... (1 Reply)
Discussion started by: Ravi Tej
1 Replies
LEARN ABOUT DEBIAN
timetrans
TIMETRANS(1p) User Contributed Perl Documentation TIMETRANS(1p)NAME
timetrans - Converts time into time
SYNOPSIS
timetrans [units-options] [-count]
DESCRIPTION
timetrans converts time from one type of unit to another. If any of the units options are specified, then timetrans will convert those
time units into the number of seconds to which they add up. If given the count option, timetrans will convert that number of seconds into
the appropriate number of weeks, days, hours, minutes, and seconds. The converted result is printed out. Units options cannot be
specified in the same execution as the count option, and vice versa.
timetrans is intended for use with DNSSEC-Tools, for calculating a zone's expiration time.
OPTIONS
Units Options
The converted value of each unit is totaled and a single result printed.
-seconds seconds
Count of seconds to convert to seconds.
-minutes minutes
Count of minutes to convert to seconds.
-hours hours
Count of hours to convert to seconds.
-days days
Count of days to convert to seconds.
-weeks weeks
Count of weeks to convert to seconds.
Count Option
The specified seconds count is converted to the appropriate number of weeks, days, hours, minutes, and seconds.
-count seconds
Count of seconds to convert to the appropriate set of units.
Other Options
timetrans has the following miscellaneous options.
-Version
Displays the version information for timetrans and the DNSSEC-Tools package.
EXAMPLES
Example 1: Converting 5 days into seconds
$(42)> timetrans -days 5
432000
Example 2: Converting 2 weeks into seconds
$(43)> timetrans -w 2
1209600
Example 3: Converting 8 days and 8 hours into seconds
$(44)> timetrans -d 8 -hours 8
720000
Example 4: Converting 1 week, 1 day, and 8 hours into seconds
$(46)> timetrans -w 1 -days 1 -h 8
720000
Example 5: Converting 14 weeks, 4 days, 21 hours, 8 minutes, and 8 seconds into seconds
$(47)> timetrans -w 14 -d 4 -h 21 -m 8 -s 8
8888888
Example 6: Converting 720000 seconds into time units
$(48)> timetrans -c 720000
1 week, 1 day, 8 hours
Example 7: Converting 1814421 seconds into time units
$(49)> timetrans -c 1814421
3 weeks, 21 seconds
Example 8: Converting 8888888 seconds into time units
$(50)> timetrans -c 8888888
14 weeks, 4 days, 21 hours, 8 minutes, 8 seconds
COPYRIGHT
Copyright 2004-2012 SPARTA, Inc. All rights reserved. See the COPYING file included with the DNSSEC-Tools package for details.
AUTHOR
Wayne Morrison, tewok@tislabs.com
SEE ALSO zonesigner(8)Net::DNS::SEC::Tools::timetrans.pm(3)perl v5.14.2 2012-06-21 TIMETRANS(1p)