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redirect cat to variable

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Old 07-09-2008
shailesh_arya shailesh_arya is offline
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redirect cat to variable

hello
just i saw a really strange for cat

i have file (file1) contains line /home/rajiv/proj1/*.txt

now applied a commonds

DDPATH="$(cat file1)"
echo $DDPATH

it shows all the txt files in that folder like /home/rajiv/proj1/read1.txt /home/rajiv/proj1/read2.txt /home/rajiv/proj1/read3.txt ......

but i need only /home/rajiv/proj1/*.txt.
can anyone helps
shailesh
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Old 07-09-2008
phemanth24 phemanth24 is offline
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Redirecting cat

this works..

DDPATH=`cat file1`
echo "$DDPATH"

whatever you do just make sure you double quote your DDPATH variable when you print (or rather echo!)

cheers,
Hemanth
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Old 07-09-2008
shailesh_arya shailesh_arya is offline
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cat

oops not working...


also i want to use this variable further in my script
BR
shailesh
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Old 07-09-2008
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radoulov radoulov is offline Forum Staff  
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What shell? Could you post the output that demonstrates expansion of the * with quoted variable?
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Old 07-09-2008
phemanth24 phemanth24 is offline
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It does work for me...

Here's the file output
bash-2.05b$ cat file1
/home/hemanth/*.txt

...and here are my commands...
bash-2.05b$ DDPATH=`cat file1`
bash-2.05b$ echo "$DDPATH"
/home/hemanth/*.txt

Send me your output so that I can check.
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Old 07-09-2008
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Hammer & Screwdriver The wildcard is doing the substitution

See the following example:


Code:
> cat file1
/home/jg/tmp/file_lookup/*.dat
> echo "$DDPATH"
/home/jg/tmp/file_lookup/*.dat
> echo $DDPATH
/home/jg/tmp/file_lookup/sample.dat
> echo /home/jg/tmp/file_lookup/*.dat
/home/jg/tmp/file_lookup/sample.dat
>

So, try putting your variable with the echo inside quotes. echo "$DDPATH"

This is the same as typing the following:

Code:
>vi *.dat

Which would sequentially open for editing every .dat file you have.
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Old 07-09-2008
shailesh_arya shailesh_arya is offline
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cat

yes if we do echo "$DPATH" it gives proper result. but when i want to use this variable for another use like as below -


Code:
for f in "$DPATH" `find -type f`;
do
processLine 
done

it give wrong result like it cant read file with *.mk in the folder.
BR
shailesh

Last edited by radoulov; 07-10-2008 at 04:35 AM.. Reason: please use code tags
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