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Date not displaying correctly

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# 1  
Old 01-04-2012
Date not displaying correctly
Hi Experts,

I tried to stay away from posting stuff here and asking for help.

I want to print date valeu for a given variable and that is not working.

Code:
#!/bin/bash
START=`echo $1 | tr -d _`;
FV=`echo $2`
for (( c = 0 ; c < $FV ; c++ ))

do
#    echo -n "`date --date="$START +$c day" +%Y_%m_%d` ";
        date -d "$START + $c day" "+%Y_%m_%d"
done

No when I run this, it displays the following ....telling me that im wrong in asking the bash to display the date format.

Can u experts plz correct me in here please ?
Code:
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]

Thanks you in advance.
PGonzlez

Moderator's Comments:
Mod Comment How to use code tags
Last edited by Franklin52; 01-05-2012 at 04:16 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 01-04-2012
What is your input? What are you passing as arguments to this script?
What is your desired output?
# 3  
Old 01-05-2012
Hi Mirni,

I want it to display the next few days untill it reaches the value of c. To explain more clear,

Lets say if we pass a date of '2011-11-20' as argument then we want to see the next six days(which is value of C passed as argument again) as below
Code:
2011-11-20
2011-11-21
2011-11-22
2011-11-23
2011-11-24
2011-11-25

Code:
./DJ 2011_12_30 6

usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]


All of this trouble is to display all date values between two input dates. So, what Im planning doing is compare the values of each output displayed from the above lines and then parse that output using cut or awk and then compare that with the final value that user enters it and display it.

regards,
PGonzalez.
Last edited by Franklin52; 01-05-2012 at 04:17 AM.. Reason: Please use code tags for code and data samples, thank you
# 4  
Old 01-05-2012
If I could ask: does your innermost loop command actually work if given your formatted args? For example, what happens if you input:

Code:
date -d "2012-01-04 + 6 day" "+%Y_%m_%d"

I get invalid date...
# 5  
Old 01-05-2012
Yes, when I run this, I get this error.
Code:
date -d "2012-01-04 + 6 day" "+%Y_%m_%d"


usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]

Getting back to the basic question, how do I display all dates between two dates in the YYYYMMDD format.

For example,

if I give 2 inputs, 2010-12-28 and 2011-01-02 then I should follow -
Code:
2010-12-28
2010-12-29
2010-12-30
2010-12-31
2011-01-01
2011-01-02

Last edited by Franklin52; 01-05-2012 at 04:18 AM.. Reason: Please use code tags for code and data samples, thank you
# 6  
Old 01-05-2012
Solution for post #1.

bash code:
  1. #!/bin/bash
  2.  
  3. START=`echo $1 | tr _ -`
  4. for (( c = 0 ; c < $2 ; c++ ))
  5. do
  6.     date -d "$START +$c days" "+%Y_%m_%d"
  7. done

Code:
$ ./test.sh 2012_01_03 6
2012_01_03
2012_01_04
2012_01_05
2012_01_06
2012_01_07
2012_01_08

# 7  
Old 01-05-2012
Im afraid it is still not working for me.
Code:
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
usage: date [-jnu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... 
            [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]

Last edited by Franklin52; 01-05-2012 at 04:18 AM.. Reason: Code tags
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