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Script working in AIX, but giving error in SOLARIS

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Top Forums Shell Programming and Scripting Script working in AIX, but giving error in SOLARIS
# 1  
Old 02-09-2011
Script working in AIX, but giving error in SOLARIS
Hi,
My script is working fine in AIX but throwing an error in SOLARIS system.

Here is the error message that I am getting when calculating the elapsed time:
/home/x772525/FindETA.sh[106]: start_mins = *60 + : syntax error

Code:
.
((start_mins = $(expr substr "$j" 1 2)*60 + $(expr substr "$j" 4 2)))

Please let me know if there is any problemm with the line.

Thanks
Ajay
# 2  
Old 02-10-2011
Perhaps $j is not set?
# 3  
Old 02-10-2011
Code:
for j in `cat starttime.txt`
        do
                
                for k in `cat endtime.txt`
                do
                        
                        num=$(expr substr "$k" 1 2)
                       
                        ((start_mins = $(expr substr "$j" 1 2)*60 + $(expr substr "$j" 4 2)))
                        ((end_mins = $(expr substr "$k" 1 2)*60 + $(expr substr "$k" 4 2)))
                        ((elapsed_mins = end_mins - start_mins))

This is the code that I am using. Same thing if I copy paste in AIX, it is working, but in SOLARIS it is throwing that error.

---------- Post updated at 12:56 AM ---------- Previous update was at 12:39 AM ----------

Code:
[bpdps009] x772525 /home/x772525> cat starttime.txt
20:03:12
[bpdps009] x772525 /home/x772525> cat endtime.txt
20:04:57

Code:
[bpdps009] x772525 /home/x772525> cat > test.sh
#!/bin/ksh
for j in `cat starttime.txt`
        do
                
                for k in `cat endtime.txt`
                do
                        
                        num=$(expr substr "$k" 1 2)
                       
                        ((start_mins = $(expr substr "$j" 1 2)*60 + $(expr substr "$j" 4 2)))
                        ((end_mins = $(expr substr "$k" 1 2)*60 + $(expr substr "$k" 4 2)))
                        ((elapsed_mins = end_mins - start_mins))
echo "$elapsed_mins"
done
done

Output:
Code:
[bpdps009] x772525 /home/x772525> test.sh
expr: syntax error
expr: syntax error
expr: syntax error
/home/x772525/test.sh[10]: start_mins = *60 + : syntax error

---------- Post updated at 08:37 PM ---------- Previous update was at 12:56 AM ----------

It looks to be a problem with expr syntax. Can someone pls help me solve this?

Thanks
Ajay
# 4  
Old 02-10-2011
Try putting set -x in the start of the script. And post the results.

I'm confused because I only get a syntax error from expr if I omit the quotes...
Code:
$ set -x

$ x=""
+ x=

$ expr substr "$x" 1 2
+ expr substr '' 1 2


$ expr substr $x 1 2
+ expr substr 1 2
expr: syntax error

$

...where $ is the bash prompt.
# 5  
Old 02-10-2011
Code:
[bpdps009] x772525 /home/x772525> cat > test.sh
#!/bin/ksh
set -x
read stime < starttime.txt
      
                
                read etime < endtime.txt
              
                        ((start_mins = $(expr substr "$stime" 1 2)*60 + $(expr substr "$stime" 4 2)))
                        ((end_mins = $(expr substr "$etime" 1 2)*60 + $(expr substr "$etime" 4 2)))
                        ((elapsed_mins = end_mins - start_mins))
echo "$elapsed_mins"

Here is the output:
Code:
[bpdps009] x772525 /home/x772525> test.sh
+ read stime
+ 0< starttime.txt
+ read etime
+ 0< endtime.txt
+ expr substr 20:03:12 1 2
expr: syntax error
+ expr substr 20:03:12 4 2
expr: syntax error
+ (( start_mins = *60 +  ))
/home/x772525/test.sh[9]: start_mins = *60 + : syntax error

# 6  
Old 02-10-2011
Perhaps it's the Solaris expr, does expr substr "AB:CD" 1 2 work from the command line?

You could replace the expr call with something like echo $stime | cut -f1 -d:
Last edited by Chubler_XL; 02-10-2011 at 10:35 PM.. Reason: typos
# 7  
Old 02-11-2011
Yes, that command is not working on command line also. .
I used that cut option and it is now working fine.

Thank you.
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