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Can't get $(date +%F) set as environment variable

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6

I would like to create an environment variable that will output the current date. I have added the following to ~/.pam_environment:

TODAY=$(date +%F)

Apparently, you have to log out after changing ~/.pam_environment. I did that but

echo $TODAY

outputs a blank line.

What am I doing wrong?

bash environment-variables

share|improve this question

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

add a comment | 

6

I would like to create an environment variable that will output the current date. I have added the following to ~/.pam_environment:

TODAY=$(date +%F)

Apparently, you have to log out after changing ~/.pam_environment. I did that but

echo $TODAY

outputs a blank line.

What am I doing wrong?

bash environment-variables

share|improve this question

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

add a comment | 

I would like to create an environment variable that will output the current date. I have added the following to ~/.pam_environment:

TODAY=$(date +%F)

Apparently, you have to log out after changing ~/.pam_environment. I did that but

echo $TODAY

outputs a blank line.

What am I doing wrong?

bash environment-variables

share|improve this question

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

TODAY=$(date +%F)

echo $TODAY

share|improve this question

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

share|improve this question

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

edited 2 mins ago

Pang

13926

edited 2 mins ago

Pang

13926

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

asked Apr 24 '13 at 0:55

Mark McKennaMark McKenna

3112

3 Answers
3

active

oldest

votes

4

~/.pam_environment is not a script file. Use ~/.profile instead:

export TODAY=$(date +%F)

share|improve this answer

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

add a comment | 

2

You forgot the "quotes" Here is a Cool Link for more examples.

TODAY= date +"%F"

share|improve this answer

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately that did not work. I tried experimenting a bit and added the following to ~/.pam_environment: TODAY=date +"%F" TODAYS=$(date +"%F") NOW=$(date +"%m-%d-%Y") None of these are working
  
  – Mark McKenna
  Apr 25 '13 at 1:32
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @ScottGoodgame That's not the problem. It is not generally necessary to quote %, and although the reference you provided follows this style, it does not actually say one has to do so. Try some examples from that page without quotes (e.g., date +%m-%d-%y). It works fine. In addition, TODAY= date +"%F" actually runs date +"%F" with TODAY set to the empty string in its environment.
  
  – Eliah Kagan
  Jan 25 '17 at 11:23
  
  
  

  
  
  
  

add a comment | 

0

$ export DATE=`date +"%F"`

$ echo $DATE

2014-05-30

share|improve this answer

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

add a comment | 

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4

~/.pam_environment is not a script file. Use ~/.profile instead:

export TODAY=$(date +%F)

share|improve this answer

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

add a comment | 

4

~/.pam_environment is not a script file. Use ~/.profile instead:

export TODAY=$(date +%F)

share|improve this answer

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

add a comment | 

~/.pam_environment is not a script file. Use ~/.profile instead:

export TODAY=$(date +%F)

share|improve this answer

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

export TODAY=$(date +%F)

share|improve this answer

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

answered May 29 '14 at 17:24

Gunnar HjalmarssonGunnar Hjalmarsson

19.6k23461

2

You forgot the "quotes" Here is a Cool Link for more examples.

TODAY= date +"%F"

share|improve this answer

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately that did not work. I tried experimenting a bit and added the following to ~/.pam_environment: TODAY=date +"%F" TODAYS=$(date +"%F") NOW=$(date +"%m-%d-%Y") None of these are working
  
  – Mark McKenna
  Apr 25 '13 at 1:32
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @ScottGoodgame That's not the problem. It is not generally necessary to quote %, and although the reference you provided follows this style, it does not actually say one has to do so. Try some examples from that page without quotes (e.g., date +%m-%d-%y). It works fine. In addition, TODAY= date +"%F" actually runs date +"%F" with TODAY set to the empty string in its environment.
  
  – Eliah Kagan
  Jan 25 '17 at 11:23
  
  
  

  
  
  
  

add a comment | 

2

You forgot the "quotes" Here is a Cool Link for more examples.

TODAY= date +"%F"

share|improve this answer

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately that did not work. I tried experimenting a bit and added the following to ~/.pam_environment: TODAY=date +"%F" TODAYS=$(date +"%F") NOW=$(date +"%m-%d-%Y") None of these are working
  
  – Mark McKenna
  Apr 25 '13 at 1:32
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @ScottGoodgame That's not the problem. It is not generally necessary to quote %, and although the reference you provided follows this style, it does not actually say one has to do so. Try some examples from that page without quotes (e.g., date +%m-%d-%y). It works fine. In addition, TODAY= date +"%F" actually runs date +"%F" with TODAY set to the empty string in its environment.
  
  – Eliah Kagan
  Jan 25 '17 at 11:23
  
  
  

  
  
  
  

add a comment | 

You forgot the "quotes" Here is a Cool Link for more examples.

TODAY= date +"%F"

share|improve this answer

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

TODAY= date +"%F"

share|improve this answer

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

answered Apr 24 '13 at 1:16

Scott GoodgameScott Goodgame

2,357820

0

$ export DATE=`date +"%F"`

$ echo $DATE

2014-05-30

share|improve this answer

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

add a comment | 

0

$ export DATE=`date +"%F"`

$ echo $DATE

2014-05-30

share|improve this answer

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

add a comment | 

$ export DATE=`date +"%F"`

$ echo $DATE

2014-05-30

share|improve this answer

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

$ export DATE=`date +"%F"`

$ echo $DATE

2014-05-30

share|improve this answer

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

edited May 29 '14 at 16:42

Eric Carvalho

42.3k17115147

answered May 29 '14 at 16:23

user286563user286563

91

answered May 29 '14 at 16:23

user286563user286563

91