?
Solved

Change the date format

Posted on 2006-11-29
3
Medium Priority
?
241 Views
Last Modified: 2010-04-20
How can I read a date written in date.data file in the following format:
year/month/day

date.data
-----------
1815/11/02      Boole, George
1864/06/22      Minkowski, Hermann
1854/04/29      Poincare, Jules Henri
1877/09/11      Jeans, James Hopwood
1826/09/17      Riemann, Georg Friedrich Bernhard

and change it to the following format:
George BOOLE (November 2, 1815)

can anyone provide me with the solution.
0
Comment
Question by:saharey
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 1

Accepted Solution

by:
TraskAdam earned 200 total points
ID: 18035837
A bit of perl ought to do the trick...

[user@localhost /tmp/ee]$ cat data
1815/11/02      Boole, George
1864/06/22      Minkowski, Hermann
1854/04/29      Poincare, Jules Henri
1877/09/11      Jeans, James Hopwood
1826/09/17      Riemann, Georg Friedrich Bernhard
[user@localhost /tmp/ee]$ cat conv.pl
#!/usr/bin/perl -n

@mon = ("",
        "January",
        "March",
        "March",
        "April",
        "May",
        "June",
        "July",
        "August",
        "September",
        "October",
        "November",
        "December"
);
next unless (\/^(\d+)\/(\d+)\/(\d+)\s+([^,]+),\s*(.*)$/);

$year = $1; $mon = $2; $day = $3;
$last = $4; $first = $5;

printf "%s %s (%s %d, %d)\n",
        $first, uc($last), $mon[$mon], $day, $year;

[user@localhost /tmp/ee]$ cat data | ./conv.pl
George BOOLE (November 2, 1815)
Hermann MINKOWSKI (June 22, 1864)
Jules Henri POINCARE (April 29, 1854)
James Hopwood JEANS (September 11, 1877)
Georg Friedrich Bernhard RIEMANN (September 17, 1826)
[user@localhost /tmp/ee]$

... prolly a programatic way to find the name of the month using strftime() instead of a predefined array but it doens't seem worth the effort here.  Should probably also report bogus lines istead of just ignoring them so...

next unless (\/^(\d+)\/(\d+)\/(\d+)\s+([^,]+),\s*(.*)$/);

... should be more like...

unless (\/^(\d+)\/(\d+)\/(\d+)\s+([^,]+),\s*(.*)$/) {
       print STDERR "unrecongised line: $_";
       next;
}
0

Featured Post

Cloud Training Guides

FREE GUIDES: In-depth and hand-crafted Linux, AWS, OpenStack, DevOps, Azure, and Cloud training guides created by Linux Academy instructors and the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Using 'screen' for session sharing, The Simple Edition Step 1: user starts session with command: screen Step 2: other user (logged in with same user account) connects with command: screen -x Done. Both users are connected to the same CLI sessio…
In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
Suggested Courses
Course of the Month9 days, 7 hours left to enroll

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question