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Scripting problems

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# 8  
Old 09-12-2005
to check if today is 'monday'....
Code:
#!/bin/ksh

# set your 'NOT to run day' here: Sun...Sat [1..7]
# 2 is Monday
not2run='2'

if (( $(date +%u) == not2run )) ; then
   echo "Cannot run today"
else
   echo "Can run today"
fi

or as tmarikle has suggested - must have been typing at the same time.
# 9  
Old 09-12-2005
Quote:
Originally Posted by vgersh99
to check if today is 'monday'....
Code:
...
# set your 'NOT to run day' here: Sun...Sat [1..7]
# 2 is Monday
not2run='2'

if (( $(date +%u) == not2run )) ; then
...

My system shows that Monday = 1 when I run man strftime.
# 10  
Old 09-12-2005
Thanks to everyone for the info.

Im fairly new to scripts what does the %a stand for? id there anyway to simplify the if condition such as:

if today=tuesday
then run myscript
# 11  
Old 09-12-2005
Quote:
Originally Posted by tmarikle
My system shows that Monday = 1 when I run man strftime.
different locale I guess:
Code:
     %u        Weekday  as  a  decimal  number  [1,7],   with   1
               representing Sunday.

# 12  
Old 09-12-2005
Quote:
Originally Posted by lewisoco
Thanks to everyone for the info.

Im fairly new to scripts what does the %a stand for? id there anyway to simplify the if condition such as:

if today=tuesday
then run myscript
I referenced %A, which is different then %a.
When I look up date in the man pages, +format refers me to strftime(3C). man strftime yields:

Code:
...
     %a    Locale's abbreviated weekday name.

     %A    Locale's full weekday name.
...

My earlier example is as abbreviated as you probably want but:
Code:
if [ $(date +%A) == Monday ]
then
    echo "Can't run on Mondays"
    exit 2
fi

could be written as this but it's less intuitive if you are new:

Code:
[ $(date +%A) == Monday ] && exit 2

Quote:
Originally Posted by vgersh99
different locale I guess:
It looks like you are right about Locale; I guess I wouldn't want to get used to scripting tests using 1=Monday or 2=Monday without knowing my system's locale if Monday was a bad day to run scripts. Smilie
# 13  
Old 09-12-2005
Quote:
Originally Posted by vgersh99
different locale I guess:
This change was introduced by XPG4. 1=Sunday is the old way and 1=Monday is the new way. From the Solaris 9 strftime man page:
Code:
     The conversion specification  for  %u  was  changed  in  the
     Solaris 8 release. This change was based on the XPG4 specif-
     ication.

I think that HP-UX made the change at 11.0.
# 14  
Old 09-12-2005
Quote:
Originally Posted by Perderabo
This change was introduced by XPG4. 1=Sunday is the old way and 1=Monday is the new way. From the Solaris 9 strftime man page:
Code:
     The conversion specification  for  %u  was  changed  in  the
     Solaris 8 release. This change was based on the XPG4 specif-
     ication.

I think that HP-UX made the change at 11.0.
Ah, I see - I tested it on Solaris 7
Good to know - thanks.
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