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error with TEST command

 
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# 8  
Old 12-27-2011
For me, the same code works good.
Code:
pandeeswaran@ubuntu:~/Downloads$ sed 'q' ABC_INVENTORY
amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2

pandeeswaran@ubuntu:~/Downloads$ sed -n 'p' script.sh
header_data_file=`head -1 ABC_INVENTORY`
echo $header_data_file
ABC_INVENTORY1="amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2"
echo $ABC_INVENTORY1
#flag=`[ $ABC_INVENTORY1 =  $header_data_file ]`
flag=$( [[ $ABC_INVENTORY1 = $header_data_file ]] && echo Yes || echo No)
echo $flag
pandeeswaran@ubuntu:~/Downloads$ ./script.sh
amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2
amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2
Yes

My guess is ,in the file you should have some non printable characters.Thats why it's not matching.
Just remove those by using the below sed one liner:
Code:
header_data_file=`head -1 ABC_INVENTORY|sed  -e 's/^[\t]*//'`

The final code will be:
Code:
pandeeswaran@ubuntu:~/Downloads$ sed -n 'p' script.sh
header_data_file=`head -1 ABC_INVENTORY|sed  -e 's/^[\t]*//'`
echo $header_data_file
ABC_INVENTORY1="amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2"
echo $ABC_INVENTORY1
#flag=`[ $ABC_INVENTORY1 =  $header_data_file ]`
flag=$( [[ $ABC_INVENTORY1 = $header_data_file ]] && echo Yes || echo No)
echo $flag
pandeeswaran@ubuntu:~/Downloads$ ./script.sh
amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2
amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2
Yes
pandeeswaran@ubuntu:~/Downloads$

IHTH(I hope this helps).
# 9  
Old 12-27-2011
Works for me. I tried the same code snippet on GNU Bash 4.2.10.

Include set -x after hash-bang line and see if you can debug.
# 10  
Old 12-28-2011
Let's check the record for control characters etc: (Command is designed to make control characters visible).

Code:
sed -n 'l;q' ABC_INVENTORY

Last edited by methyl; 12-28-2011 at 01:37 PM..
# 11  
Old 12-28-2011
I removed a [] from the 6th line and it worked.. below is the script..

PHP Code:
header_data_file=`head -1 ABC_INVENTORY`
echo $header_data_file
ABC_INVENTORY1="amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2"
echo $ABC_INVENTORY1
#flag=`[ $ABC_INVENTORY1 =  $header_data_file ]`
flag=$( [ $ABC_INVENTORY1 = $header_data_file ] && echo Yes || echo No)
echo $flag 
# 12  
Old 12-28-2011
After reviewing the posts on this thread, I believe that the main issue is the lack of double quote characters round strings which contain pipe characters. I'm not convinced that your most recent version (post #11) is sound (but it does appear to work).

This will probably be easier follow and easier to maintain:
Code:
header_data_file=`head -1 ABC_INVENTORY`
ABC_INVENTORY1="amount1|amount2|amount3|amount4|city|country|name1|name2|number1|number2"
if [ "${ABC_INVENTORY1}" = "${header_data_file}" ]
then
        flag="Yes"
else
        flag="No"
fi
#
echo "flag=${flag}"

./scriptname
flag=Yes


Footnote: I got the complete opposite result from pandeesh in post #8 ... as I think did Vijay81.
The script tested in post #8 can be corrected by putting double quotes round the string variables, which is itself best practice.
Last edited by methyl; 12-28-2011 at 02:03 PM..
 
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