Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

printf vs sprintf - perl

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting printf vs sprintf - perl
# 1  
Old 04-02-2009
printf vs sprintf - perl
I would like to assign the output of printf to a variable in perl , it give me back a "1" instead of the time. How can I stuff the variable with what printf returns?

Here is my code:

Code:
#!/usr/bin/perl

$time = localtime(time);
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);

$newtime = printf ("%4d-%02d-%02d %02d:%02d:%02d",$year+1900,$mon+1,$mday,$hour,$min,$sec);

print "$newtime\n";


Any suggestions?

Thanks in advance.
# 2  
Old 04-02-2009
Try

Code:
$ cat ./mycode
#!/usr/bin/perl

$time = localtime(time);
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);

$newtime = sprintf ("%4d-%02d-%02d %02d:%02d:%02d",$year+1900,$mon+1,$mday,$hour,$min,$sec);

print "$newtime\n";

$ ./mycode
2009-04-02 16:55:311

# 3  
Old 04-02-2009
Quote:
Originally Posted by Dabheeruz
I would like to assign the output of printf to a variable in perl , it give me back a "1" instead of the time. How can I stuff the variable with what printf returns?

Here is my code:

Code:
#!/usr/bin/perl

$time = localtime(time);
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);

$newtime = printf ("%4d-%02d-%02d %02d:%02d:%02d",$year+1900,$mon+1,$mday,$hour,$min,$sec);

print "$newtime\n";


Any suggestions?

Thanks in advance.
You can't, you need to to use sprintf.
# 4  
Old 04-02-2009
Thanks Guys!!
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Programming

[Perl] Different printf formating for different print options

Hi, Struggling with single quotes, double quotes, etc. I want to print a header line, followed by lines with actual values, based on a print option. In real life it is going to be something like 15 print options and 50 values. Output will be 1 header and several value lines. In this example... (5 Replies)
Discussion started by: ejdv
5 Replies

2. Shell Programming and Scripting

printf (awk,perl,shell) float rounding issue

Hi guys, could someone throw some light on the following behaviour of printf (I'll start with info about the system and the tool/shell/interpreter versions)?: $ uname -a Linux linux-86if.site 3.1.0-1.2-desktop #1 SMP PREEMPT Thu Nov 3 14:45:45 UTC 2011 (187dde0) x86_64 x86_64 x86_64... (9 Replies)
Discussion started by: elixir_sinari
9 Replies

3. Shell Programming and Scripting

[Solved] Not able to quote perl function in sprintf() !

The required form of command is as perl /product/editique/RFR/preproc/scripts/ExprEval.pl -P 'EGAL_CHAINE (" ","")' -K /varsoft/editique/RFR/preproc/logs/D.RFR.PR.PCAC9.PCPA.00.54.20110920.Evaluate_Expression.logWhat's wrong with this code (it is not quoting the function, I have checked... (1 Reply)
Discussion started by: ezee
1 Replies

4. Programming

Problem with Sprintf

Hi, I have the below sample code to hash the input number read from file. File will have 16 to 19 digit number and executable hash the number using some logic and returns the hashed value. Each digit in the 16 digit number is converted to a 4 byte value. That if the input is 16digit integer, the... (6 Replies)
Discussion started by: ramkrix
6 Replies

5. Programming

How to right pad with zeros using sprintf?

I need to right-pad with zeros a string by using (s)printf. I looked up the manual and tried with printf("%-19s", buffer); which right-pad the string with spaces. So I tried printf("%019s", buffer); which left-pad the string with zeros. So I tried both printf("%-019s", buffer);... (9 Replies)
Discussion started by: emitrax
9 Replies

6. Shell Programming and Scripting

Perl script to search sprintf and replace with snprintf

Dear all, I am new to perl script and would need some help for my 1st script. I wrote a script to search sprintf(buf,"%s", sourcestring) and replace with snprintf(buf, sizeof(buf),"%s", sourcestring). As snprintf() requires an extra argument, so it is not a simple search-and-replace. I need to... (1 Reply)
Discussion started by: ChaMeN
1 Replies

7. Shell Programming and Scripting

sprintf result on perl

Hello, In perl lang, I have create a string (@str) by sprintf but unfortunately when program printed it out, only I could saw a number like 1. Certainly printf doesn't problem. How I can convert a string that are result of sprintf to a common string format??! Thanks in advance. PLEASE HELP ME. (2 Replies)
Discussion started by: Zaxon
2 Replies

8. Programming

equivalent of sprintf in C++

Hi My requirement is to convert the following to C++ char buffer; sprintf(buffer,"%s %-50s %6s %-6d %s\n",a.substr(0,5),a.substr(10,20)) Since the buffer is of varying length, i cannot hardcode the value as 90. i would like to convert the buffer to string object so that it can receive any... (1 Reply)
Discussion started by: dhanamurthy
1 Replies

9. Shell Programming and Scripting

perl: printf indentation problem

hi all, im having a problem with using perl printf. my requirement is to print a string (like ) at the right most end of the screen. i tried this perl script, but it fails with an error; #!/usr/bin/perl use strict; use warnings; my $scrW = 0; my $str = `stty size`; # get the... (5 Replies)
Discussion started by: wolwy_pete
5 Replies

10. Programming

sprintf function

Hi, Can someone help me to figure out whether this code is to write file to /tmp/TIMECLOCK directory or just to asign a variable with "/tmp/TIMECLOCK/name.log_copy.pid" as the string? I am looking into an old C program and could not figure out where in the code that creates... (1 Reply)
Discussion started by: whatisthis
1 Replies
Login or Register to Ask a Question