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[SOLVED] Making mktime/strftime available to mawk

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Top Forums UNIX for Advanced & Expert Users [SOLVED] Making mktime/strftime available to mawk
# 1  
Old 01-08-2014
[SOLVED] Making mktime/strftime available to mawk
I frequently use awk time functions and am switching some scripts over to mawk. I don't have the mktime or strftime functions in mawk, but it appears that there is a way, as explained here in "Time functions":

Moderator's Comments:
Mod Comment Please only cut-and-past links to man pages from our man pages.


Quote:
These are available on systems which support the corresponding C mktime and strftime functions:

mktime(specification)
strftime([format [, timestamp [, utc ]]])
systime()
So, simple question... How do I make support for C mktime and strftime functions available? Apologies if I've overlooked something simple, and many thanks in advance.
# 2  
Old 01-08-2014
Well, what is your system? does it have mktime and strftime?

The first thing that comes to mind is upgrading your version of mawk.
# 3  
Old 01-08-2014
Quote:
Originally Posted by Corona688
Well, what is your system? does it have mktime and strftime?

The first thing that comes to mind is upgrading your version of mawk.
Thanks for the reply. I'm running CentOS 6.0 x86_64. I'm very sorry to say I don't know how to determine whether it has mktime and strftime. How would I do that?

Also, while the unix.com man page library does have a mawk entry, it appears to differ from the one I linked, lacking at least the time-related entries I cited. Is it still ok to link externally in that case?

Again, thanks for the help.
Last edited by treesloth; 01-08-2014 at 07:12 PM..
# 4  
Old 01-09-2014
You have UNIX or Linux, therefore you have mktime and strftime. These functions are fairly standard.

You may have go upgrade your version of mawk to have them in that language.
# 5  
Old 01-09-2014
Quote:
Originally Posted by Corona688
You have UNIX or Linux, therefore you have mktime and strftime. These functions are fairly standard.

You may have go upgrade your version of mawk to have them in that language.
I think what I have is the newest version of mawk available for my system:

Code:
# mawk -W version
mawk 1.3.4 20120627

How might I get it to recognize the functions I need? Or, for that matter, how would I verify their availability on my system? Regular awk can use those functions. Does it call the same C functions that mawk apparently does? Thanks again for the responses.
# 6  
Old 01-09-2014
mawk does not have a strftime function, strftime is a built in function of gawk.
# 7  
Old 01-09-2014
Quote:
Originally Posted by Franklin52
mawk does not have a strftime function, strftime is a built in function of gawk.
that's what I'd thought as well, but the man page posted at the site where I got mawk indicated otherwise. I'd link it, but apparently that gets smooshed if I try.
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