Visit The New, Modern Unix Linux Community

Top Forums Shell Programming and Scripting How to increment date using "for loop" in format MMDDYY inside the shell script? Post 302763125 by Corona688 on Tuesday 29th of January 2013 02:50:58 PM
If you have AIX you don't have a lot of options for date math. This snippet continues to come in handy:
Code:
for ((I=0; I<=50; I++))
do
        DATE=$(perl -e 'use POSIX qw(strftime);  print strftime "%Y/%m/%d\n", localtime(time()+($ARGV[0]*60*60*24));' -- -${I})
        echo "got date $DATE"
done

 
Test Your Knowledge in Computers #700
Difficulty: Medium
In the theory of Vernadsky, the noosphere is the fifth in a succession of phases of related to the development of the Earth.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Date increment in the format "YYYYMMDD"

Hi all, I want to increment the date which is in the format "YYYYMMDD". ex: If the date is 20010601 Increment should be: 20010602, 20010603 etc., Any help will be much appreciated. Many Thanks and Regards, Ganapati (4 Replies)
Discussion started by: ganapati
4 Replies

2. Shell Programming and Scripting

convert mmddyy date format to ccyyddd format??

hi, for reading a cobol indexed file i need to convert "mmddyy" date format to "ccyyddd" format. i checked the datecalc and other scripts but couldnt modify them to cater to my need:(... The datecalc gives an output which i believe is the total days till that date, but i want to convert it... (2 Replies)
Discussion started by: Bhups
2 Replies

3. Shell Programming and Scripting

How to increment a user defined date value in the DATE format itself using shell script?

I need to increment a date value through shell script. Input value consist of start date and end date in DATE format of unix. For eg. I need increment a date value of 1/1/09 to 31/12/09 i.e for a whole yr. The output must look like 1/1/09 2/2/09 . . . 31/1/09 . . 1/2/09 . 28/2/09... (1 Reply)
Discussion started by: sunil087
1 Replies

4. Shell Programming and Scripting

Format output from the file to extract "date" section

Hello Team , I have to extract date section from the below file output. The output of the file is as shown below. I have to extract the "" this section from the above output of the file. can anyone please let me know how can we acheive this? (4 Replies)
Discussion started by: coolguyamy
4 Replies

5. AIX

How to use 'expect' to pass UID & Password to a "for loop" in shell script?

Friends, Need someone's help in helping me with the below requirement for a script: > For a list of servers(over 100+), I need to login into each of them(cannot configure password-less ssh) & grab few configuration details < I know, this is possible through expect programming in a simple... (2 Replies)
Discussion started by: thisissouvik
2 Replies

6. Shell Programming and Scripting

How to use 'expect' to pass UID & Password to a "for loop" in shell script?

Friends, Need someone's help in helping me with the below requirement for a script: > For a list of servers(over 100+), I need to login into each of them(cannot configure password-less ssh) & grab few configuration details < I know, this is possible through expect programming in a simple... (14 Replies)
Discussion started by: thisissouvik
14 Replies

7. Shell Programming and Scripting

While loop breaking when using "ssh" command inside

Hi , I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop. cat "$ARCHIVE_CFG_FILE" | sed '/^$/d' | sed '/^#/d' | while read ARCHIVE_CFG do SOURCE_SERVER_NAME=`echo "$ARCHIVE_CFG" | awk -F '|' '{ print... (2 Replies)
Discussion started by: Anupam_Halder
2 Replies

8. Shell Programming and Scripting

Bash - How to do a "read -p" inside a while loop?

Hi there guys! I was trying to do: while read line; do if ; then read -p "Press Enter to continue..." cont=0 fi echo $line let cont++ done < file.txt However, I have read that the read -p would not work in a while loop... I was wondering if there is any other way to... (2 Replies)
Discussion started by: rplae
2 Replies

9. Shell Programming and Scripting

Failure: if grep "$Var" "$line" inside while read line loop

Hi everybody, I am new at Unix/Bourne shell scripting and with my youngest experiences, I will not become very old with it :o My code: #!/bin/sh set -e set -u export IFS= optl="Optl" LOCSTORCLI="/opt/lsi/storcli/storcli" ($LOCSTORCLI /c0 /vall show | grep RAID | cut -d " "... (5 Replies)
Discussion started by: Subsonic66
5 Replies

10. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
PERLOS400(1)						 Perl Programmers Reference Guide					      PERLOS400(1)

NAME
perlos400 - Perl version 5 on OS/400 DESCRIPTION
This document describes various features of IBM's OS/400 operating system that will affect how Perl version 5 (hereafter just Perl) is compiled and/or runs. By far the easiest way to build Perl for OS/400 is to use the PASE (Portable Application Solutions Environment), for more information see <http://www.iseries.ibm.com/developer/factory/pase/index.html> This environment allows one to use AIX APIs while programming, and it provides a runtime that allows AIX binaries to execute directly on the PowerPC iSeries. Compiling Perl for OS/400 PASE The recommended way to build Perl for the OS/400 PASE is to build the Perl 5 source code (release 5.8.1 or later) under AIX. The trick is to give a special parameter to the Configure shell script when running it on AIX: sh Configure -DPASE ... The default installation directory of Perl under PASE is /QOpenSys/perl. This can be modified if needed with Configure parameter -Dprefix=/some/dir. Starting from OS/400 V5R2 the IBM Visual Age compiler is supported on OS/400 PASE, so it is possible to build Perl natively on OS/400. The easier way, however, is to compile in AIX, as just described. If you don't want to install the compiled Perl in AIX into /QOpenSys (for packaging it before copying it to PASE), you can use a Configure parameter: -Dinstallprefix=/tmp/QOpenSys/perl. This will cause the "make install" to install everything into that directory, while the installed files still think they are (will be) in /QOpenSys/perl. If building natively on PASE, please do the build under the /QOpenSys directory, since Perl is happier when built on a case sensitive filesystem. Installing Perl in OS/400 PASE If you are compiling on AIX, simply do a "make install" on the AIX box. Once the install finishes, tar up the /QOpenSys/perl directory. Transfer the tarball to the OS/400 using FTP with the following commands: > binary > site namefmt 1 > put perl.tar /QOpenSys Once you have it on, simply bring up a PASE shell and extract the tarball. If you are compiling in PASE, then "make install" is the only thing you will need to do. The default path for perl binary is /QOpenSys/perl/bin/perl. You'll want to symlink /QOpenSys/usr/bin/perl to this file so you don't have to modify your path. Using Perl in OS/400 PASE Perl in PASE may be used in the same manner as you would use Perl on AIX. Scripts starting with #!/usr/bin/perl should work if you have /QOpenSys/usr/bin/perl symlinked to your perl binary. This will not work if you've done a setuid/setgid or have environment variable PASE_EXEC_QOPENSYS="N". If you have V5R1, you'll need to get the latest PTFs to have this feature. Scripts starting with #!/QOpenSys/perl/bin/perl should always work. Known Problems When compiling in PASE, there is no "oslevel" command. Therefore, you may want to create a script called "oslevel" that echoes the level of AIX that your version of PASE runtime supports. If you're unsure, consult your documentation or use "4.3.3.0". If you have test cases that fail, check for the existence of spool files. The test case may be trying to use a syscall that is not implemented in PASE. To avoid the SIGILL, try setting the PASE_SYSCALL_NOSIGILL environment variable or have a handler for the SIGILL. If you can compile programs for PASE, run the config script and edit config.sh when it gives you the option. If you want to remove fchdir(), which isn't implement in V5R1, simply change the line that says: d_fchdir='define' to d_fchdir='undef' and then compile Perl. The places where fchdir() is used have alternatives for systems that do not have fchdir() available. Perl on ILE There exists a port of Perl to the ILE environment. This port, however, is based quite an old release of Perl, Perl 5.00502 (August 1998). (As of July 2002 the latest release of Perl is 5.8.0, and even 5.6.1 has been out since April 2001.) If you need to run Perl on ILE, though, you may need this older port: <http://www.cpan.org/ports/#os400> Note that any Perl release later than 5.00502 has not been ported to ILE. If you need to use Perl in the ILE environment, you may want to consider using Qp2RunPase() to call the PASE version of Perl. AUTHORS
Jarkko Hietaniemi <jhi@iki.fi> Bryan Logan <bryanlog@us.ibm.com> David Larson <larson1@us.ibm.com> perl v5.18.2 2013-11-04 PERLOS400(1)

Featured Tech Videos

All times are GMT -4. The time now is 10:11 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy