03-07-2017
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi i am trying to subtract days from current date. For example todays date is 10/03/2006. If i subtract 2 days it should give 8/03/2006. I am also trying to find the access date of a file in dd/mm/yyyy format. Can any one please help in how to do this.
Ramesh (1 Reply)
Discussion started by: rameshspal
1 Replies
2. Shell Programming and Scripting
I have looked through the forums and found many date / time manipulation tools, but cannot seem to find something that fits my needs for the following.
I have a log file with date time stamps like this:
Jun 21 17:21:52
Jun 21 17:24:56
Jun 21 17:27:59
Jun 21 17:31:03
Jun 21 17:34:07
Jun... (0 Replies)
Discussion started by: roadcyclist
0 Replies
3. UNIX for Dummies Questions & Answers
how can we add or subtract days from the output of date command in unix...
like if i want to subtract a day from the result of date command like this..
v_date=`date +%Y%m%d`
this wud give me 20080519
now i want to subtract one day from this.. so tht it wud give me 20080518..
how do i do... (1 Reply)
Discussion started by: St.Fartatric
1 Replies
4. Shell Programming and Scripting
Hi,
We have a server in US and hence while the command "date" is given it gives the output in EDT. If I want the date output in MET, how can I get it. Please let me know how I could do it in the script which is ksh. Thanks. (1 Reply)
Discussion started by: jmathew99
1 Replies
5. UNIX for Dummies Questions & Answers
Hi Gurus!
I have a static date in a YYYYMMDD format; and I want get the date 2 years in the past and 2 years in the future.
static_date=20010203
old_date=$static_date - 3 years
future_date=$static_date + 2 years
I was only able to research on dates that are current and not on static... (3 Replies)
Discussion started by: kokoro
3 Replies
6. Shell Programming and Scripting
I got a statement like below to subtract 1 from given date using teradata. I am looking for a one line unix command to perform the same.
select 'parse_this_record', (DATE '${FILE_DATE}' - 1) (FORMAT 'YYYY-MM-DD');
Input: 2012-02-21
Expected Output: 2012-02-20
PS: One liner because I am... (2 Replies)
Discussion started by: siteregsam
2 Replies
7. Shell Programming and Scripting
Hi ,
How can I add/substruct x number of days with date?
For example
My_Date=`date`
Now I need
Hope it's clear. (2 Replies)
Discussion started by: Anupam_Halder
2 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I am using KSH shell and need to subtract n number of days from the current date .. kindly suggest !
Thanks in advance!:) (20 Replies)
Discussion started by: dev.devil.1983
20 Replies
9. Shell Programming and Scripting
Hi All,
I am getting a date from environment variable and want to do some processing by subtracting 2 months from the date passed through the environment variable.
I am trying the following syntax :
date_var=2014-08-31
date_2M_ago='$date_var+"%d%m%y" --$date_var="2 months ago" '... (3 Replies)
Discussion started by: Rahul Raj
3 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I have a CSV file which is as below. Basically I need to take the year column in it and find if the year is >= 20152 . If that is then I should subtract all values by 6. In the below example in description I am having number mentioned as YYWW so I need to subtract those by -5. Whereever... (8 Replies)
Discussion started by: arunkumar_mca
8 Replies
LEARN ABOUT REDHAT
tmpwatch
TMPWATCH(8) System Administrator's Manual TMPWATCH(8)
NAME
tmpwatch - removes files which haven't been accessed for a period of time
SYNOPSIS
tmpwatch [-u|-m|-c] [-faqstv] [--verbose] [--force] [--all] [--test]
[--fuser ] [--atime|--mtime|--ctime] [--quiet] <hours> <dirs>
DESCRIPTION
tmpwatch recursively removes files which haven't been accessed for a given number of hours. Normally, it's used to clean up directories
which are used for temporary holding space such as /tmp.
When changing directories, tmpwatch is very sensitive to possible race conditions and will exit with an error if one is detected. It does
not follow symbolic links in the directories it's cleaning (even if a symbolic link is given as its argument), will not switch filesystems,
and only removes empty directories and regular files.
By default, tmpwatch dates files by their atime (access time), not their mtime (modification time). If files aren't being removed when ls
-l implies they should be, use ls -u to examine their atime to see if that explains the problem.
If the --atime, --ctime or --mtime options are used in combination, the decision about deleting a file will be based on the maximum of this
times.
The hours parameter defines the threshold for removing files. If the file has not been accessed for hours hours, the file is removed. Fol-
lowing this, one or more directories may be given for tmpwatch to clean up.
OPTIONS
-u, --atime
Make the decision about deleting a file based on the file's atime (access time). This is the default.
-m, --mtime
Make the decision about deleting a file based on the file's mtime (modification time) instead of the atime.
-c, --ctime
Make the decision about deleting a file based on the file's ctime (inode change time) instead of the atime; for directories, make
the decision based on the mtime.
-a, --all
Remove all file types, not just regular files and directories.
-d, --nodirs
Do not attempt to remove directories, even if they are empty.
-f, --force
Remove files even if root doesn't have write access (akin to rm -f).
-t, --test
Doesn't remove files, but goes through the motions of removing them. This implies -v.
-s, --fuser
Attempt to use the "fuser" command to see if a file is already open before removing it. Not enabled by default. Does help in some
circumstances, but not all. Dependent on fuser being installed in /sbin.
-v, --verbose
Print a verbose display. Two levels of verboseness are available -- use this option twice to get the most verbose output.
SEE ALSO
cron(1), ls(1), rm(1), fuser(1)
WARNINGS
GNU-style long options are not supported on HP-UX.
AUTHORS
Erik Troan <ewt@redhat.com>
Preston Brown <pbrown@redhat.com>
Nalin Dahyabhai <nalin@redhat.com>
4th Berkeley Distribution Wed Nov 28 2001 TMPWATCH(8)