Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Perl - setting a variable ?
Top Forums Shell Programming and Scripting Perl - setting a variable ? Post 302349473 by rethink on Tuesday 1st of September 2009 05:43:54 AM
Old 09-01-2009
Perl - setting a variable ?
hi there, I have a question about a snippet of code i have which runs localtime() to convert the current date/time into a mysql happy format



Code:
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);
printf "%4d-%02d-%02d  %02d:%02d:%02d\n",$year+1900,$mon+1,$mday,$hour,$min,$sec;

If i run the above as a standalone script, i get the desired result

Code:
 # ./time.pl 
2009-09-01 10:22:18

However, what i want to do is incorporate it as part of another script and populate an internal variable with the result rather than sending it to standard out ...so i tried this

Code:
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);
my  $datetime = printf "%4d-%02d-%02d  %02d:%02d:%02d\n",$year+1900,$mon+1,$mday,$hour,$min,$sec;

print "\n datetime equals $datetime\n";

Code:
# ./time.pl 
2009-09-01 10:10:31

datetime equals 1
#

but as you can see, not only has it still output to result to standard out (not ideal), but it has populated the variable $datatime with the value "1"

is there something im doing drstically wrong here

any hlp would be great
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

setting CC variable

I am trying to install GCC-3.1.1 on an SGI Indigo2. I already have MIPSpro 7.2.1 installed. However, when I try to configure GCC-3.1.1, I get the message "cc ERROR: cc -o conftest -g failed, You must set the environment variable CC to a working compiler." What is the name of the MIPSpro c++... (1 Reply)
Discussion started by: mdbanas
1 Replies

2. Programming

setting CC variable

I am trying to install GCC-3.1.1 on an SGI Indigo2. I already have MIPSpro 7.2.1 installed. However, when I try to configure GCC-3.1.1, I get the message "cc ERROR: cc -o conftest -g failed, You must set the environment variable CC to a working compiler." What is the name of the MIPSpro c++... (1 Reply)
Discussion started by: mdbanas
1 Replies

3. UNIX for Dummies Questions & Answers

Setting a variable

I want to set a variable to be any number of dashes. Rather than doing the following: MYVAR="------------------" I'd like to be able to set the variable to, say, 80 dashes but don't want to have to count 80 dashes. Is there a way to do this? (2 Replies)
Discussion started by: photh
2 Replies

4. Shell Programming and Scripting

Variable setting help please

L=0 cat test.sh | while read line do L='expr $1 + 1' echo $L done echo $l >>> the echo $L at the end produces 0 but i actually want it to produce the number of lines - any idea why this is happening? (16 Replies)
Discussion started by: penfold
16 Replies

5. Shell Programming and Scripting

Setting variable

How do you set a varible with information that contains a string and also another variable? For example: subject="Attention: $name / This $type needs your attention" The $xxxx are of course other variables that I instantiated earlier. Is it like Java where you have to use double quotes and... (1 Reply)
Discussion started by: briskbaby
1 Replies

6. UNIX for Dummies Questions & Answers

setting a variable

In my script, I have the following command.... du -sk `ls -ltd sales12|awk '{print $11}'`|awk '{print $1}' it returns the value 383283 I want to modify my script to capture that value into a variable. So, I try doing the following... var1=`du -sk `ls -ltd sales12|awk '{print... (5 Replies)
Discussion started by: tumblez
5 Replies

7. Shell Programming and Scripting

Help with setting a variable!

I am working within a while loop and i am trying to set a variable that will read out each count of the files. the problem is the count variable i have set up gives me a total and not the individual count of each file. in the data area there is 4 abc.dat and 1 def.dat. how can i do this??? ... (2 Replies)
Discussion started by: Pablo_beezo
2 Replies

8. Programming

Setting Environment variable..!

Hi, I already have one CPP program which invokes the C program.And the C program contains whole function definitions..!This is a working program..I have to enable the logs in both CPP as well as in the C program ..!So I am reading the enviornmental variable log path from the CPP and doing the... (2 Replies)
Discussion started by: Kattoor
2 Replies

9. Shell Programming and Scripting

Setting a variable within if block

Hi, i have a variable which i would like to set inside an if block for example IS_VAR=0 if then IS_VAR=1 fi echo IS_VAR the last echo statement gives 0.So setting variables in the if block doesnt have effect outside the block?Is there any workaround for this? Thanks , Padmini (11 Replies)
Discussion started by: padmisri
11 Replies

10. AIX

Perl error : perl: warning: Setting locale failed.

This's my problem perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LC_ALL = "en_US.UTF-8", LC__FASTMSG = "true", LC_MESSAGES = "", LC_CTYPE = "en_US.UTF-8", LC_TYPE = "en_US.UTF-8", LANG = "EN_US"... (1 Reply)
Discussion started by: bobochacha29
1 Replies

LEARN ABOUT DEBIAN

tai64nlocal

tai64nlocal(8)						      System Manager's Manual						    tai64nlocal(8)

NAME

       tai64nlocal - converts precise TAI64N timestamps to a human-readable format.

SYNOPSIS

       tai64nlocal

DESCRIPTION

       tai64nlocal  reads lines from stdin. If a line does not begin with @, tai64nlocal writes it to stdout without change. If a line begins with
       @, tai64nlocal looks for a timestamp after the @, in the format printed by tai64n(8), and writes the line to stdout with the timestamp con-
       verted to local time in ISO format: YYYY-MM-DD HH:MM:SS.SSSSSSSSS.

       For example, in the US/Pacific time zone, the input line

	 @4000000037c219bf2ef02e94 mark

       should be printed as

	 1999-08-23 21:03:43.787492500 mark

       Beware,	however,  that the current implementation of tai64nlocal relies on the UNIX localtime library routine to find the local time. Some
       localtime implementations use a broken time scale that does not account for leap seconds. On systems that use the Olson tz library (with an
       up-to-date leap-second table), you can fix this problem by setting your time zone to, e.g, right/US/Pacific instead of US/Pacific.

       Beware also that most localtime implementations are not Y2038-compliant.

       tai64nlocal does not allocate any memory after it starts, except possibly inside localtime.

EXIT CODES

       tai64nlocal exits 0 when it sees end of input. It exits 111 without an error message if it has trouble reading stdin or writing stdout.

SEE ALSO

       supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8), readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64n(8), setu-
       idgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)

       http://cr.yp.to/daemontools.html

																    tai64nlocal(8)
All times are GMT -4. The time now is 04:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy