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Shell Programming and Scripting

Not delete space blank

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# 1  
Old 08-23-2013
Not delete space blank
Hi everyone, i need to "grep" a file with a string with space blanks, like this:

Code:
grep "XXXX      XX" file.txt

The problem, i need put the "XXXX XX" in a string variable. When the script executes the grep, do:

Code:
gresp XXXX XX file.txt

How can i solve this problem?

The code of script:

Code:
AUX=XXXX"        "XX
echo "AUX: "${AUX}
grep ${AUX} file.txt

Thanks!
Sorry
# 2  
Old 08-23-2013
Double quote the variable.

Regards,
Alister
# 3  
Old 08-23-2013
How does the doble quote like?

Sorry for my english, is bad.
# 4  
Old 08-23-2013
Code:
grep "$AUX" file.txt

# 5  
Old 08-23-2013
Thanks a lot!
# 6  
Old 08-23-2013
Not sure if the X stands for sth like "any char except space". If no, disregard this post. If Yes, try
Code:
AUX="[^ ]{4} {3}[^ ]{2}"
grep -E "$AUX" file
abcd   ef

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