date manipulating


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers date manipulating
# 1  
Question

I'm using Kshell scripts cronjobs to logrolling my daily log files and I stamped the log file at the end of the day by date stamp i.e.: %d_%m_%y-LogFile.

but the 22_01_2001-LogFile as example contains 21st Jan data and I want to stamp the log file with previous day.

so I'm trying to subtract one day from the current day but it doesn't work.
like: date +%d-1_%m_%y or date expr +%d - 1 _%m_%y.
or setting the day in variable then subtract one.
like: set today=`/usr/bin/date +%d`
set yesterday=/usr/bin/expr $today - 1

so how can I manipulate the date using date command and subtract a day, week, or moth from the current day.



# 2  
If you are using the GNU version of date, you can do something like:

/bin/date --date="yesterday"

to get yesterdays date. Grab it as part of sh-utils from http://www.gnu.org
# 3  
but I'm using
SunOS 5.7
Solaris 2.7

can I do date manipulate on this OS?
# 4  
Install GCC on one platform and use GCC to compile the GNU tools for the right OS. When I work at any site, I always install the GCC compiler and environment. To do this expands your world greatly and provides a cross platform code base for utilities.
 

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #532
Difficulty: Medium
UTF-8 uses a fixed number of bytes to encode characters.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Manipulating files

Not sure if the question posted in another forums can be moved by me.So posting the link here. https://www.unix.com/unix-advanced-expert-users/221425-shell-script-manipulate-files.html#post302795379 Need your help here. (1 Reply)
Discussion started by: vedanta
1 Replies

2. Shell Programming and Scripting

Manipulating Columns!

Hello Experts, I have .txt file which has various columns and 4 rows. cat input.txt Cont x y z k Max 0.3 0.9 0.4 0.6 Min 0.2 0.9 0.3 0.6 Diff 0.1 0 0.1 0 Output: Cont x y z k Max 0.5 1.1 0.6 0.8 Min 0.1 0.7 0.2 0.4 Diff 0.4 0.4 0.4 0.4 That means if the diff between the Max and... (2 Replies)
Discussion started by: dixits
2 Replies

3. Shell Programming and Scripting

Manipulating Filenames

Hi Folks, I'm looking for some ideas on how to change some file names. I'm pretty sure I need to use sed or awk but they still escape me. The files I have are like: VOD0615 NEW Blades R77307.pdf or VOD0615_NEW_Blades_R77307.pdf and what I want after processing is: R77307 NEW Blades.pdf ... (5 Replies)
Discussion started by: imonkey
5 Replies

4. UNIX for Dummies Questions & Answers

Manipulating files

Hi Guys, I'm really new to Unix and Linux and other scripting languages but recently I hv been really enthusiatic about learning more to help out on my work. So I have a file with 3 columns. A sample of it looks like looks like this : K2_537841 AAATCAGCCGCAACATTTGC ... (7 Replies)
Discussion started by: pawannoel
7 Replies

5. Shell Programming and Scripting

need help on manipulating a file

Hi, I need a shell/command to achieve this task. I've a delimited unloaded file from oracle in a scrambled format as shown below with many blank lines in it, I'm just trying to tailor it in a format that would be compatible to view and load it to a IDS db. Here is the problem ... (1 Reply)
Discussion started by: divak
1 Replies

6. Solaris

Manipulating TOP

I need the command top to output as: Memory: 2048M real, 1499M free, 53M swap in use, 5423M swap free on just the memory line. Instead, I have compiled the new version of top that displays as so: Memory: 2048M phys mem, 1499M free mem, 5476 total swap, 5423M swap free I read... (2 Replies)
Discussion started by: adelsin
2 Replies

7. Emergency UNIX and Linux Support

Manipulating Data

Hi. I haven't had to write bash scripts in a long time and have a simple task to do, but need some help: Input: chrY:22627291-22651542 chrY:23045932-23070172 chrY:23684890-23696359 chrY:25318610-25330083 chrY:25451096-25462570 chr10:1054847-1061799 chr10:1058606-1080131... (7 Replies)
Discussion started by: awknerd
7 Replies

8. UNIX for Dummies Questions & Answers

string manipulating

I have a file like this: Tue Apr 15 10:41:47 MDT 2008 FINAL RESULT; 6 Tue Apr 15 10:41:47 MDT 2008 FINAL RESULT; 2 Tue Apr 15 10:41:47 MDT 2008 FINAL RESULT; 5 With this command seira=`cut -f 2 -d ';' tes.txt` i take all the results (6,2,5 etc) and i store them in variable seira When i do... (9 Replies)
Discussion started by: psalas
9 Replies

9. Solaris

Manipulating File

Help...please. I have a log that contains Warning Authentication Failed: User GHDT88998HS doesn't exit: The User GHDT88998HS could not be found Mar 22, 2008 5:22:22AM com.hometel.ttm.auth.userlogin. about maybe a thousand entries failed user acct message How can I grab just the username... (2 Replies)
Discussion started by: rivendell500
2 Replies

10. UNIX for Advanced & Expert Users

Manipulating two files

Hi Friends, I prefer to represent my problem with example. I have two files as below: file1.txt --------- abcd.....1234......XY abcd.....1235......XX abcd................. abcd...231236..1111YX abcd...241236..1112YY abcd...241237......YY abce.....1235......YY file2.txt ------- ... (4 Replies)
Discussion started by: rinku11
4 Replies

Featured Tech Videos