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check line by line in a file

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# 1  
Old 11-02-2008
check line by line in a file
Hi there

How can I check line by line in a file?

I need to compare the first value with the second to know if they are equal. If those values are equal, I require to send "TRUE" to the output or "FALSE" otherwise until the complete file has been read.

Thank you
# 2  
Old 11-02-2008
Why this code doesn't work?

while read first second
do
if "$first"!="$second"; then
echo false
fi
done< myfile.txt
# 3  
Old 11-02-2008
@loperman where is TRUE ?
Code:
while read a b; do test $a == "$b" && echo TRUE || echo FALSE; done < file

# 4  
Old 11-02-2008
Ok thanks, but that code is only working for the cases where a==b, I don't get the FALSE cases

besides how can I send the output to a file? I tried the next line but doesn't work
test $a==$b echo TRUE >>r.txt || echo FALSE >>r.txt
# 5  
Old 11-02-2008
Code:
while read a b;do [ $a == "$b" ] && echo TRUE >> r.txt || echo FALSE >> r.txt; done < file

# 6  
Old 11-02-2008
For some reason I only get the cases that apply to the first part (echo TRUE) and not to the second (echo FALSE).
The same happens if I do this:
test [$a!="$b"] && echo FALSE >>r.txt || echo TRUE >>r.txt
now only the FALSE cases are sent to the file
# 7  
Old 11-04-2008
Code:
# bash --version
GNU bash, version 3.2.39(1)-release (i386-portbld-freebsd6.4)
Copyright (C) 2007 Free Software Foundation, Inc.

# cat file
a a
b c
d d d
1 a
# while read a b;do [ $a == "$b" ] && echo TRUE >> r.txt || echo FALSE >> r.txt; done < file
# cat r.txt
TRUE
FALSE
FALSE
FALSE
#

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