Solaris scripting problem with ksh88 Post: 302917291

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Operating Systems Solaris Solaris scripting problem with ksh88 Post 302917291 by MadeInGermany on Monday 15th of September 2014 06:09:04 PM

09-15-2014

Registered User

Quote:

Originally Posted by gfroute

It works properly if I run the commands manually or if I put the commands in a file:

Code:

./test.ksh
9
31
25
38
72
91
81
52
51

If I add "#!/bin/ksh" at the beginning of my script, I get this error:

Code:

./test.ksh
./test.ksh[5]: ++I < 10: bad number

Here's the inside of the script

Code:

#!/bin/ksh
MATRICE="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@;:[].{}+=<>#|()^&_0123456789"
unset I
PWLEN=10
while ((++I < $PWLEN)); do echo $((RANDOM%${#MATRICE})); done

ksh88 does not have the full implementation of (( )).
You can rewrite the bash-3/ksh93 style

Code:

I=0; while ((++I < PWLEN)); do echo $I; done

like this

Code:

I=1; while ((I < PWLEN)); do echo $I; ((I=I+1)); done

---------- Post updated at 05:09 PM ---------- Previous update was at 04:40 PM ----------

Quote:

Originally Posted by gfroute

Hello,

I want to pick a random element from a list, and created these 2 lines, which work very well in ksh93. Unfortunately, I get this "bad substitution" message in ksh88.

I'm wondering if there's an equivalent to the second line of my script.. or if I have to install ksh93 to make this work.

Here are my lines:

Code:

MATRICE="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@;:[].{}+=<>#|()^&_0123456789"

PASSWD="${MATRICE:$(($RANDOM%${#MATRICE})):1}"

Thanks in advance

A straight translation:

Code:

PASSWD=`expr "$MATRICE" : ".\{$(($RANDOM%${#MATRICE}))\}\(.\)"`

Expert question: why can the ` ` not be a $(( ))?

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