want to create directory with the previous date

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting want to create directory with the previous date
# 1  
Old 11-18-2007
want to create directory with the previous date

I need some help to complet the below script:

DATE1=`date "+%d"`

#DATE2=`expr $DATE1 - 1`

#DATE3=$DATE2`date "+%m%y"`

DATE4=`date "+%a"`

if [ $DATE4 = Mon ]; then

DATE2=`expr $DATE1 - 3`


DATE2=`expr $DATE1 - 1`


cd /data/builds/612hf8/SAS/retail/plan_61/scripts/meserver

DATE3=$DATE2`date "+%m%y"`

mkdir $DATE3

echo "dir created"

mv *.log $DATE3

echo "logs moved to $DATE3 folder"

The above script creates the directory with the previous day date.

along with the above script output, i need how to create month end directories that means 30th or 31st of date. if suppose date is 1st of any month, this script not creating directory of the previous date that is 30th or 31st.

Please some body help me to complete above script.

I would appreciate your help.

# 2  
Old 11-18-2007
Aha - date arithmetic.
You could set up an array with 28/29/30/31 days lookups for the months and leapyear calculations.

I once wrote a C program called timecalc. Here it is, if it's of any use:
 * Name:
 *	timecalc.c
 * Purpose:
 *	Time calculations.
 * Usage:
 *	timecalc [+|-]n [seconds|minutes|hours|days|weeks]
 * History:
 *	050713	GZB	Original.

static char *gsVersion="@(#)timecalc.c GZB 050713";

#include <time.h>
#include <stdlib.h>
#include <sys/time.h>

int gbDebug=0;
int gbVerbose=0;
double gfTimeDiff=0;	/* What to change the time by. */
int giTimeDiff=0;	/* What to change the time by. */
int giTimeUnits=1;	/* Time units scaled to seconds. */
char gsDateSep[10]="/";	/* Date separator. */
char gsTimeSep[10]=":";	/* Time separator. */
char gsDtoTSep[10]=" ";	/* Separator between date & time. */

	printf("usage: timecalc [+|-]n [seconds|minutes|hours|days|weeks]\n");

	int argc;
	char **argv;
	int i;

	if (gbDebug) printf("CommandArgs()\n");

	for ( i=1; i<argc; i++ )
		if (gbDebug) printf("%d/%d\n", i, argc);

		switch (*argv[i])
			case '+': gfTimeDiff=atof(argv[i]+1); break;
			case '-': gfTimeDiff=-atof(argv[i]+1); break;
			case 's': giTimeUnits=1; break;
			case 'm': giTimeUnits=60; break;
			case 'h': giTimeUnits=60*60; break;
			case 'd': giTimeUnits=60*60*24; break;
			case 'w': giTimeUnits=60*60*24*7; break;
			case 'D': gbDebug=1; break;
			case 'V': gbVerbose=1; break;
			/* case 'T': *gsDateSep='\0'; *gsTimeSep='\0'; break; */
			case 'T': strcpy(gsDateSep,""); strcpy(gsTimeSep,""); break;
			default: Usage(); break;

	giTimeDiff *= giTimeUnits;
	if (gbDebug) printf( "%d %d\n", giTimeDiff, giTimeUnits);

	giTimeDiff = (int)(gfTimeDiff * (double)giTimeUnits);
	if (gbDebug) printf( "%d %f %d\n", giTimeDiff, gfTimeDiff, giTimeUnits);

	struct tm *tp;

	int argc;
	char **argv;
	time_t	t;
	time_t	tnew;
	struct tm *tp;

	t = (time_t)time((time_t *)0);
	if (gbDebug) printf("Seconds since epoch = %d\n", t);


	tnew = t + giTimeDiff;
	if (gbDebug) printf("Seconds adjusted by %d = %d\n", giTimeDiff, tnew);

	if (gbVerbose)
		tp = localtime(&t);
		/* printf(" -> "); */

	tp = localtime(&tnew);

All usual disclaimers, non-warranties, and so-on apply!

Alternatively, you could try and make some clever use of the "cal" (calendar) program.
# 3  
Old 11-18-2007
Check the man page of date, if the -d or --date is suported you can do something like:

date --date='1 day ago'

# 4  
Old 11-18-2007
you can get the previous day's date with following command:

DATE_STAMP=`TZ=CST+24 date +%y%m%d`

Try the following link:

# 5  
Old 11-18-2007


Use the following command to get the previous day's date.

DATE_STAMP=`TZ=CST+24 date +%y%m%d`
# 6  
Old 11-19-2007
want to create directory with the previous date

Thanks Sandy.... its working.

but i am not understanding what is TZ=CST+24, i never seen in the Date manual page also.

Thanks once again.

# 7  
Old 11-19-2007
The time-zone "trick" is unreliable. Take a look at the FAQs.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash to create new directory by date followed by identifier and additional subdirectories

I have a bash that downloads a list and if that list has data in it then a new main directory is created (with the date) with several subdirectories (example1, example2, example3). My question is in that list there are portion of specific file types (.vcf.gz) - identifier towards the end that have... (0 Replies)
Discussion started by: cmccabe
0 Replies

2. Shell Programming and Scripting

List files with date, create directory, move to the created directory

Hi all, i have a folder, with tons of files containing as following, on /my/folder/jobs/ some_name_2016-01-17-22-38-58_some name_0_0.zip.done some_name_2016-01-17-22-40-30_some name_0_0.zip.done some_name_2016-01-17-22-48-50_some name_0_0.zip.done and these can be lots of similar files,... (6 Replies)
Discussion started by: charli1
6 Replies

3. Shell Programming and Scripting

Create a directory with previous date

Hi All, can any body tell me how to create a new directory with previous time stamp in HP-UX?. e.g i am creating a file liketouch -t 07022013 kkk -rw-r----- 1 feeds sys 0 Jul 2 20:13 kkksame how can i create a directory? please help me. Thanks & Regards, Krupa (4 Replies)
Discussion started by: krupasindhu18
4 Replies

4. Shell Programming and Scripting

Help with getting last date of previous month and first date of previous 4th month from current date

I have requirment to get last date of previous month and the first date of previous 4th month: Example: Current date: 20130320 (yyyymmdd) Last date of previous month: 20130228 (yyyymmdd) First date of previous 4th month: 20121101 (yyyymmdd) In my shell --date, -d, -v switches are not... (3 Replies)
Discussion started by: machomaddy
3 Replies

5. Shell Programming and Scripting

finding the previous day date and creating a file with date

Hi guys, I had a scenario... 1. I had to get the previous days date in yyyymmdd format 2. i had to create a file with Date inthe format yyyymmdd.txt format both are different thanks guys in advance.. (4 Replies)
Discussion started by: apple2685
4 Replies

6. Shell Programming and Scripting

Create a directory named as the current date

I am preparing a shell script to backup a few config files on a daily basis, with a retention of 30 days. Need some help with syntax/examples: The shell script (running as cron) would require the following: 1. create a sub-directory within a specified (backup) directory, in the format... (3 Replies)
Discussion started by: FeNiCrC_Neil
3 Replies

7. UNIX for Dummies Questions & Answers

Create a directory using current date

Hi, I have a question, is there any way I can, when i create a directory, put the current date on it so that the directory name will be "name-current date"? just curious (3 Replies)
Discussion started by: aric87
3 Replies

8. UNIX for Dummies Questions & Answers

Create Year directory, date subdirectory and archive the file

Hi, After checking all the UNIX threads, I am able to come up with a solution so far. I am working on a shell script where it moves the files to a certain directory. The conditions to check are 1) Check if the file exists in the current directory. 2) Check if the destination directory... (2 Replies)
Discussion started by: madhunk
2 Replies

9. UNIX for Dummies Questions & Answers

Directory create date

Hi, How do you find the create date of a directory? I can see the modification date using ls -l but I'm looking for the create date. Many thanks Helen (2 Replies)
Discussion started by: Bab00shka
2 Replies

10. UNIX for Dummies Questions & Answers

create directory named current date

Since this site solved my problems before, I am back for more (solutions) I down load via a script every day a file that has the same name as the file of the day before. I want to move that file to its own directory like: /archive/jul30 How do I capture the systems date in a script an... (2 Replies)
Discussion started by: flowrats
2 Replies
Login or Register to Ask a Question