I needed that functionality once too, I went about it by appending the current date to a file every day at 23:59 in cron... then refrencing that file whenever I needed to write a script to get things for yesterday... or last 5 days and so on and so forth.
I do something similar. I put the date into a file, but I rename the files to age them. I.E.:
One other thing I do is run it at around 11:00am Mon to Fri, and I first check to see if there are at least 'x' users logged in. 'x' is 70% of my typical number of users. This way my dates only contain business dates, and automatically skip holidays and snow days.
When using them, I always selected TWO day files. I.E. check to see if my date is <= day06 and > day07, or something similar.
Hello, using date, we can easily get today's date
$ date +%y-%m-%d
06-12-08
is it possible for me to get yesterday's date using 'date', if not, is there any quick and easy way to do that?
Thanks! (1 Reply)
Hi expert,
I want to retrieve yesterday su log.
How to calculate and assign variable value ( 06/23 ) in myVariable ?
#!/bin/sh
myVariable=yesterday date in month/date
cat /var/adm/sulog | grep $myVariable > file.txt
many thanks! (5 Replies)
I am currently running the following Korn shell script which works fine:
#!/usr/bin/ksh
count=`db2 -x "select count(*) from schema.tablename"`
echo "count"
I would like to add a "where" clause to the 2nd line that would allow me to get a record count of all the records from schema.tablename... (9 Replies)
I was playing to find a simple way to get yesterday's date, and came up with this (on an AIX 5.2 box):
$ date
Thu Feb 19 11:21:26 EST 2009
$ echo $TZ
EST5EDT
$ yesterday=`TZ=$(date +%Z)+24 date`
$ echo $yesterday
Wed Feb 18 16:21:52 GMT 2009
Why it is converted to GMT instead of... (2 Replies)
Hi,
I want to compare today's date(DDMMYYYY) with yesterday(DDMMYYYY) from system date,if (today month = yesterday month) then execute alter query else do nothing.
The above requirement i want in Shell script(KSH)...
Can any one please help me?
Double post, continued here. (0 Replies)
Hello,
I have a file like this:
2012112920121130
12345620121130msABowwiqiq
34477420121129amABamauee
e7748420121130ehABeheheei
in case the content of the file has the date of yesterday within the lines containing pattern AB this should be replaced by the current date. But if I use... (3 Replies)
Hi
I want to get tomorrow and yesterday date from date command. My shell is KSH and server is AIX. I tried several options, but unable to do. Please help on this.
Regards
Rajesh (5 Replies)
Hello,
I'd like to write a monthly archive script that archives some logs. But I'd like to do it based on yesterday's date. In other words, I'd like to schedule the script to run on the 1st day of each month, but have the archive filename include the previous month instead.
Here's what I... (5 Replies)
hi all,
How to compare two files whether they are same are not...? like i had my input files as 20141201_file.txt and 20141130_file2.txt
how to compare the above files based on date .. like todays file and yesterdays file...? (4 Replies)
Discussion started by: hemanthsaikumar
4 Replies
LEARN ABOUT DEBIAN
nngoback
NNGOBACK(1) General Commands Manual NNGOBACK(1)NAME
nngoback - make news articles unread on a day-by-day basis (nn)
SYNOPSIS
nngoback [ -NQvi ] [-d] days [ group ]...
DESCRIPTION
nngoback will rewind the .newsrc record file of nn(1) one or more days. It can be used to rewind all groups, or only a specified set of
groups. In other words, nngoback can mark news articles which have arrived on the system during the last days days unread.
Only subscribed groups that occur in the current presentation sequence are rewound. That means that if no group arguments are specified,
all groups occurring in the sequence defined in the init file will be rewound. Otherwise, only the groups specified on the argument line
will be rewound.
When a group is rewound, the information about selections, partially read digests etc. are discarded. It will print notifications about
this unless the -Q (quiet) option is used.
If the -i (interactive) option is specified, nngoback will report for each how many articles can be marked unread, and ask for confirmation
before going back in that group.
If the -v (verbose) option is specified, nngoback will report how many articles are marked unread.
If the -N (no-update) option is specified, nngoback will perform the entire goback operation, but not update the .newsrc file.
If you are not up-to-date with your news reading, you can also use nngoback to catch up to only have the last few days of news waiting to
be read in the following way:
nn -a0
nngoback 3
The nn command will mark all articles in all groups as read (answer all to the catch-up question.) The following nngoback will then make
the last three days of news unread again.
Examples:
nngoback 0
Mark the articles which have arrived today as unread.
nngoback 1
Mark the articles which have arrived yesterday and today as unread.
nngoback 6
Mark the articles which have arrived during the last week as unread.
You cannot go more than 14 days back with nngoback. (You can change this limit as described below.)
THE BACK_ACT DAEMON
It is a prerequisite for the use of nngoback that the script back_act is executed at an appropriate time once (and only once) every day.
Preferably this is done by cron right before the bacth of news for `today' is received. back_act will maintain copies of the active file
for the last 14 days.
Optionally, the back_act program accepts a single numerical argument specifying how many copies of the active file it should maintain.
This is useful if news is expired after 7 days, in which case keeping more than 7 days of active file copies is wasteful.
FILES
~/.newsrc The record of read articles.
~/.newsrc.goback The original rc file before goback.
$db/active.N The N days `old' active file.
$master/back_act Script run by cron to maintain old active files.
SEE ALSO nn(1), nncheck(1), nngrab(1), nngrep(1), nnpost(1), nntidy(1)nnadmin(1M), nnusage(1M), nnmaster(8)NOTES
nngoback does not check the age of the `old' active files; it will blindly believe that active.0 was created today, and that active.7 is
really seven days old! Therefore, the back_act script should be run once and only once every day for nngoback to work properly.
The days are counted relative to the time the active files were copied.
AUTHOR
Kim F. Storm, Texas Instruments A/S, Denmark
E-mail: storm@texas.dk
4th Berkeley Distribution Release 6.6 NNGOBACK(1)