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remove blank lines

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# 1  
Old 07-14-2009
remove blank lines
I have joined 2 files. Join command worked fine.
but the result showing extra blank lines. I tried to remove blank spaces by using awk (-- -42 RS= ORS="\n\n" file.txt) and sed (sed '/^ *$/d' file.txt)commands but didn't remove any
Any suggestions plzSmilie

123 tab .......
......tab .......234
345 tab ........
......tab.........456


The result should be like this
123 tab 234
345 tab 456
# 2  
Old 07-14-2009
what file1 and file2 contains?
# 3  
Old 07-14-2009
Hi
I solved it
nothing wrong with any commands
it's just my MacBook text format problem.
The thing is windows new lines /n and macintosh /r
# 4  
Old 07-14-2009
Windows uses '\r\n'. Unix/Linux uses '\n'.
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