Sponsored Content
Operating Systems Solaris Subtract 2 days from timestamp Post 302981800 by os2mac on Monday 19th of September 2016 04:21:14 PM
Old 09-19-2016
Quote:
Originally Posted by shamrock
It'd be a breeze if you know perl...
This kind of answer really frustrates the person asking the question. it's not constructive and doesn't really aid in solving the issue. I'm sure a lot of our questions can be answered similarly but doesn't give an immediate solution.

---------- Post updated at 12:21 PM ---------- Previous update was at 12:14 PM ----------

are you working comparing files based on a timestamp?

if so you can do something like

Code:
if [[ $i -nt $NEWER ]];

See:

Introduction to if

specifically:

[ FILE1 -nt FILE2 ] True if FILE1 has been changed more recently than FILE2, or if FILE1 exists and FILE2 does not.
[ FILE1 -ot FILE2 ] True if FILE1 is older than FILE2, or is FILE2 exists and FILE1 does not.
[ FILE1 -ef FILE2 ] True if FILE1 and FILE2 refer to the same device and inode numbers.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Subtract days from a variable holding date

Hi, could someone help on this.. I have a date in variable procdate="05/30/2009" I would want to Subtract it with 3 or 4 (2 Replies)
Discussion started by: infernalhell
2 Replies

2. UNIX for Dummies Questions & Answers

How to compare a file by its timestamp and store in a different location whenever timestamp changes?

Hi All, I am new to unix programming. I am trying for a requirement and the requirement goes like this..... I have a test folder. Which tracks log files. After certain time, the log file is getting overwritten by another file (randomly as the time interval is not periodic). I need to preserve... (2 Replies)
Discussion started by: mailsara
2 Replies

3. UNIX for Advanced & Expert Users

Subtract days to a date in AIX 5.3

good afternoon, can someone help me, I need to make a script where n subtract days to a date. I am using AIX 5.3. Greetings. (4 Replies)
Discussion started by: systemoper
4 Replies

4. Shell Programming and Scripting

Subtract 2 date columns in .csv file and get output as number of days

Hi, I have one .csv file. I have 2 date columns present in file, column 2 and column 3. I need to calculate how many days exist between 2 dates. I am trying to subtract date column 2 from date column 3. Eg: my file look likes s.no, Start_date,End_Date 1, 7/29/2012,10/27/2012 2,... (9 Replies)
Discussion started by: Dimple
9 Replies

5. Shell Programming and Scripting

Subtract months/days from date

Hi, Can you please let me know code for the below (in korn shell) a) Subtract month(s) from given date b) Subtract day(s) from give date c) Subtract month(s) from given timestamp d) Subtract day(s) from give timestamp (1 Reply)
Discussion started by: tostay2003
1 Replies

6. Shell Programming and Scripting

To check timestamp in logfile and display lines upto 3 hours before current timestamp

Hi Friends, I have the following logfile. Currently time in india is 07/31/2014 12:33:34 and i have the following content in logfile. I want to display only those entries which contain string 'Exception' within last 3 hours. In this case, it would be the last line only I can get the... (12 Replies)
Discussion started by: srkmish
12 Replies

7. Shell Programming and Scripting

AIX : Need to convert UNIX Timestamp to normal timestamp

Hello , I am working on AIX. I have to convert Unix timestamp to normal timestamp. Below is the file. The Unix timestamp will always be preceded by EFFECTIVE_TIME as first field as shown and there could be multiple EFFECTIVE_TIME in the file : 3.txt Contents of... (6 Replies)
Discussion started by: rahul2662
6 Replies

8. Shell Programming and Scripting

Grep lines between last hour timestamp and current timestamp

So basically I have a log file and each line in this log file starts with a timestamp: MON DD HH:MM:SS SEP 15 07:30:01 I need to grep all the lines between last hour timestamp and current timestamp. Then these lines will be moved to a tmp file from which I will grep for particular strings. ... (1 Reply)
Discussion started by: nms
1 Replies

9. Shell Programming and Scripting

Get a given date and subtract it to 5 days ago

Hi all, I have been researching to obtain SSL certification expiry for most of our webistes. For some cases, some hosts where not directly accessible so i finally got a solution working with curl using my proxy. This lists the expiry date which i'm finally looking for. # curl --proxy... (4 Replies)
Discussion started by: nms
4 Replies

10. HP-UX

awk command in hp UNIX subtract 30 days automatically from current date without date illegal option

current date command runs well awk -v t="$(date +%Y-%m-%d)" -F "'" '$1 < t' myname.dat subtract 30 days fails awk -v t="$(date --date="-30days" +%Y-%m-%d)" -F "'" '$1 < t' myname.dat awk command in hp unix subtract 30 days automatically from current date without date illegal option error... (20 Replies)
Discussion started by: kmarcus
20 Replies
COMM(1) 							   User Commands							   COMM(1)

NAME
comm - compare two sorted files line by line SYNOPSIS
comm [OPTION]... FILE1 FILE2 DESCRIPTION
Compare sorted files FILE1 and FILE2 line by line. When FILE1 or FILE2 (not both) is -, read standard input. With no options, produce three-column output. Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and column three contains lines common to both files. -1 suppress column 1 (lines unique to FILE1) -2 suppress column 2 (lines unique to FILE2) -3 suppress column 3 (lines that appear in both files) --check-order check that the input is correctly sorted, even if all input lines are pairable --nocheck-order do not check that the input is correctly sorted --output-delimiter=STR separate columns with STR --total output a summary -z, --zero-terminated line delimiter is NUL, not newline --help display this help and exit --version output version information and exit Note, comparisons honor the rules specified by 'LC_COLLATE'. EXAMPLES
comm -12 file1 file2 Print only lines present in both file1 and file2. comm -3 file1 file2 Print lines in file1 not in file2, and vice versa. AUTHOR
Written by Richard M. Stallman and David MacKenzie. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report comm translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
join(1), uniq(1) Full documentation at: <http://www.gnu.org/software/coreutils/comm> or available locally via: info '(coreutils) comm invocation' GNU coreutils 8.28 January 2018 COMM(1)
All times are GMT -4. The time now is 03:59 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy