10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am looking for the way to add variable number of spaces between two string. e.g input line is
a ,bb
abc ,bcb
pqr ,bfg
My output should be something like this
a ,bb
abc ,bcb
pqr ,bfg
This text... (9 Replies)
Discussion started by: diehard
9 Replies
2. Shell Programming and Scripting
I'm using a shell script to get user input with this command:
read UserInput
I would then like to take the "UserInput" variable and strip out all of the following characters, regardless of where they appear in the variable or how many occurrences there are:
\/":|<>+=;,?*@
I'm not sure... (5 Replies)
Discussion started by: nrogers64
5 Replies
3. Shell Programming and Scripting
using sed to replace a specific string on a specific line number using variables
this is where i am at
grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean
grep -n Destination... (2 Replies)
Discussion started by: todd.cutting
2 Replies
4. Shell Programming and Scripting
I have a variable that has an absolute path for a file on my computer. This dynamically changes. Is there a way I can assign two new variables from that one?
variable: /Users/keith/Desktop/test/file.mov
1) filename - no path or extention ....so just....file
2) path no filename or... (3 Replies)
Discussion started by: mainegate
3 Replies
5. Shell Programming and Scripting
hi,I am new to shell script,I have String,like this:
Number of rows exported: 5321
the numbe at end could changing,how can I extract this number and assign it to a variable,then use it later in script.
thanks. (19 Replies)
Discussion started by: vitesse
19 Replies
6. Shell Programming and Scripting
I want to check if a zip code is valid, using a variable that stores the zipcode. I am not sure how I would do this in a script. I know that simply checking for the numerical range of the number will not work, because '1' would be '00001' in zip code format. I know when I am in shell, I can use... (5 Replies)
Discussion started by: userix
5 Replies
7. Shell Programming and Scripting
Hi ,
i have to strip the spaces in the string which has the following value
ABC DEF
i want this to appear like this
ABC DEF
is there any spilt method?
please help....
Thanks (3 Replies)
Discussion started by: rag84dec
3 Replies
8. UNIX for Dummies Questions & Answers
Hi,
How to strip a portion of a file name from behind...Say for Eg..i have a file name like aaaaa.bbbbb.Mar-17-2007
i want to remove .Mar-17-2007...is there a one line command which can give this output...
Thanks
Kumar (5 Replies)
Discussion started by: kumarsaravana_s
5 Replies
9. UNIX for Dummies Questions & Answers
I am passing an argument to a file and i wanna check whether the argument is a number or string ?
how can i do this? (4 Replies)
Discussion started by: rolex.mp
4 Replies
10. Shell Programming and Scripting
I wish to compute the number of dot chars in a string.
Example:
VAR="aaaa.bbbbb.cccc"
I try the shortest command to solve this test.
Thanks in advance for your help.
Regards,
Giovanni (7 Replies)
Discussion started by: gio123bg
7 Replies
Duration(3) User Contributed Perl Documentation Duration(3)
NAME
Time::Duration - rounded or exact English expression of durations
SYNOPSIS
Example use in a program that ends by noting its runtime:
my $start_time = time();
use Time::Duration;
# then things that take all that time, and then ends:
print "Runtime ", duration(time() - $start_time), ".
";
Example use in a program that reports age of a file:
use Time::Duration;
my $file = 'that_file';
my $age = $^T - (stat($file))[9]; # 9 = modtime
print "$file was modified ", ago($age);
DESCRIPTION
This module provides functions for expressing durations in rounded or exact terms.
In the first example in the Synopsis, using duration($interval_seconds):
If the "time() - $start_time" is 3 seconds, this prints "Runtime: 3 seconds.". If it's 0 seconds, it's "Runtime: 0 seconds.". If it's 1
second, it's "Runtime: 1 second.". If it's 125 seconds, you get "Runtime: 2 minutes and 5 seconds.". If it's 3820 seconds (which is
exactly 1h, 3m, 40s), you get it rounded to fit within two expressed units: "Runtime: 1 hour and 4 minutes.". Using duration_exact instead
would return "Runtime: 1 hour, 3 minutes, and 40 seconds".
In the second example in the Synopsis, using ago($interval_seconds):
If the $age is 3 seconds, this prints "file was modified 3 seconds ago". If it's 0 seconds, it's "file was modified just now", as a
special case. If it's 1 second, it's "from 1 second ago". If it's 125 seconds, you get "file was modified 2 minutes and 5 seconds ago".
If it's 3820 seconds (which is exactly 1h, 3m, 40s), you get it rounded to fit within two expressed units: "file was modified 1 hour and 4
minutes ago". Using ago_exact instead would return "file was modified 1 hour, 3 minutes, and 40 seconds ago". And if the file's modtime
is, surprisingly, three seconds into the future, $age is -3, and you'll get the equally and appropriately surprising "file was modified 3
seconds from now."
FUNCTIONS
This module provides all the following functions, which are all exported by default when you call "use Time::Duration;".
duration($seconds)
duration($seconds, $precision)
Returns English text expressing the approximate time duration of abs($seconds), with at most "$precision || 2" expressed units. (That
is, duration($seconds) is the same as duration($seconds,2).)
For example, duration(120) or duration(-120) is "2 minutes". And duration(0) is "0 seconds".
The precision figure means that no more than that many units will be used in expressing the time duration. For example, 31,629,659
seconds is a duration of exactly 1 year, 1 day, 2 hours, and 59 seconds (assuming 1 year = exactly 365 days, as we do assume in this
module). However, if you wanted an approximation of this to at most two expressed (i.e., nonzero) units, it would round it and
truncate it to "1 year and 1 day". Max of 3 expressed units would get you "1 year, 1 day, and 2 hours". Max of 4 expressed units
would get you "1 year, 1 day, 2 hours, and 59 seconds", which happens to be exactly true. Max of 5 (or more) expressed units would get
you the same, since there are only four nonzero units possible in for that duration.
duration_exact($seconds)
Same as duration($seconds), except that the returned value is an exact (unrounded) expression of $seconds. For example,
duration_exact(31629659) returns "1 year, 1 day, 2 hours, and 59 seconds later", which is exactly true.
ago($seconds)
ago($seconds, $precision)
For a positive value of seconds, this prints the same as "duration($seconds, [$precision]) . ' ago'". For example, ago(120) is "2
minutes ago". For a negative value of seconds, this prints the same as "duration($seconds, [$precision]) . ' from now'". For example,
ago(-120) is "2 minutes from now". As a special case, ago(0) returns "right now".
ago_exact($seconds)
Same as ago($seconds), except that the returned value is an exact (unrounded) expression of $seconds.
from_now($seconds)
from_now($seconds, $precision)
from_now_exact($seconds)
The same as ago(-$seconds), ago(-$seconds, $precision), ago_exact(-$seconds). For example, from_now(120) is "2 minutes from now".
later($seconds)
later($seconds, $precision)
For a positive value of seconds, this prints the same as "duration($seconds, [$precision]) . ' later'". For example, ago(120) is "2
minutes later". For a negative value of seconds, this prints the same as "duration($seconds, [$precision]) . ' earlier'". For
example, later(-120) is "2 minutes earlier". As a special case, later(0) returns "right then".
later_exact($seconds)
Same as later($seconds), except that the returned value is an exact (unrounded) expression of $seconds.
earlier($seconds)
earlier($seconds, $precision)
earlier_exact($seconds)
The same as later(-$seconds), later(-$seconds, $precision), later_exact(-$seconds). For example, earlier(120) is "2 minutes earlier".
concise( function( ... ) )
Concise takes the string output of one of the above functions and makes it more concise. For example, "ago(4567)" returns "1 hour and
16 minutes ago", but "concise(ago(4567))" returns "1h16m ago".
I18N/L10N NOTES
Little of the internals of this module are English-specific. See source and/or contact me if you're interested in making a localized
version for some other language than English.
BACKSTORY
I wrote the basic "ago()" function for use in Infobot ("http://www.infobot.org"), because I was tired of this sort of response from the
Purl Infobot:
me> Purl, seen Woozle?
<Purl> Woozle was last seen on #perl 20 days, 7 hours, 32 minutes
and 40 seconds ago, saying: Wuzzle!
I figured if it was 20 days ago, I don't care about the seconds. So once I had written "ago()", I abstracted the code a bit and got all
the other functions.
CAVEAT
This module calls a durational "year" an interval of exactly 365 days of exactly 24 hours each, with no provision for leap years or monkey
business with 23/25 hour days (much less leap seconds!). But since the main work of this module is approximation, that shouldn't be a
great problem for most purposes.
SEE ALSO
Date::Interval, which is similarly named, but does something rather different.
Star Trek: The Next Generation (1987-1994), where the character Data would express time durations like "1 year, 20 days, 22 hours, 59
minutes, and 35 seconds" instead of rounding to "1 year and 21 days". This is because no-one ever told him to use Time::Duration.
COPYRIGHT AND DISCLAIMER
Copyright 2006, Sean M. Burke "sburke@cpan.org", all rights reserved. This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
AUTHOR
Current maintainer Avi Finkel, "avi@finkel.org"; Original author Sean M. Burke, "sburke@cpan.org"
perl v5.12.1 2007-08-19 Duration(3)