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Old 06-07-2011, 09:05 AM   #1
danishgambit
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Question script showing control sequences in list of filenames


Afternoon,

as part of a script to generate commands for a number of files, I'm using the basic command below:

-----------
for file in `ls -1 *.bd`
do
echo "proutil dbname -C load $file" >> $log
done

----------
Seems simple enough, but the script is inserting control sequences in the file
part of the command
i.e. a file called access.bd becomes

^[[0m^[[0maccess.bd^[[0m

Any suggestions as to how I can stop this happening would be appreciated.

TIA,

DG.
 
Old 06-07-2011, 09:14 AM   #2
colucix
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The control sequences are probably due to the ls command aliased to show colors. You can either escape the command to run the unaliased ls:
Code:
for file in `\ls -1 *.bd`
do
  echo "proutil dbname -C load $file" >> $log
done
or even better without the ls command at all:
Code:
for file in *.bd
do
  echo "proutil dbname -C load $file" >> $log
done
 
Old 06-07-2011, 09:18 AM   #3
danishgambit
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thanks for the response Colucix, but neither is preventing the control sequences appearing.
 
Old 06-07-2011, 09:21 AM   #4
colucix
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Really strange. Please, can you post the output of the following, to see what exactly are these control sequences?
Code:
for file in *.bd
do
  echo $file | od -c
  break
done
 
Old 06-07-2011, 09:30 AM   #5
danishgambit
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the results of the octal dump were
0000000

Hopefully this tells you more than it tells me :-)
 
Old 06-07-2011, 09:38 AM   #6
colucix
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Quote:
Originally Posted by danishgambit View Post
the results of the octal dump were
0000000
Hmmm... most likely you were not in the directory containing the *.bd files. The result of od is empty.
 
Old 06-07-2011, 09:43 AM   #7
danishgambit
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Just in case I was in the wrong directory, I've just double checked by running it again, and still getting the same output

0000000

Cheers,

DG.
 
Old 06-07-2011, 10:19 AM   #8
grail
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Just so we are on the same page, you are running this on some form of linux and the shell is either bash or sh?

Your output seems to be a bit bogus as even if I run the following:
Code:
$ echo | od -c
0000000  \n
0000001
So assuming you get in the loop and the variable has nothing in it, you should at least get the above.
If you are running colucix's code then you are also in a directory where there are no files or directories ending in '.bd'
 
Old 06-16-2011, 05:18 AM   #9
danishgambit
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thanks for the input chaps. Just realised that I may have been wasting your time. I'd assumed it was a linux box (as our boxes are always linux), but this one is apparently solaris, so I guess that might explain it.

Anyway, on the assumption that this is the reason, I'll mark this call as closed.

Thanks again.
 
Old 06-16-2011, 05:24 AM   #10
ssrameez
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for file in `ls *.bd`
do
echo "proutil dbname -C load $file" >> $log
done

could you please try this.. I have removed ls "-1" from it.. Just out of curiosity.

Last edited by ssrameez; 06-16-2011 at 05:25 AM.
 
Old 06-16-2011, 05:48 AM   #11
colucix
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Quote:
Originally Posted by danishgambit View Post
thanks for the input chaps. Just realised that I may have been wasting your time. I'd assumed it was a linux box (as our boxes are always linux), but this one is apparently solaris, so I guess that might explain it.

Anyway, on the assumption that this is the reason, I'll mark this call as closed.

Thanks again.
I can move the thread to the Solaris/Opensolaris forum. But have you solved the problem? If not, please show us the output of
Code:
ls -l *.bd
does it show colored in the terminal?

Last edited by colucix; 06-16-2011 at 05:49 AM.
 
Old 07-15-2011, 06:16 AM   #12
jlliagre
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Quote:
Originally Posted by danishgambit View Post
thanks for the input chaps. Just realised that I may have been wasting your time. I'd assumed it was a linux box (as our boxes are always linux), but this one is apparently solaris, so I guess that might explain it.
There is no reason for Solaris to behave differently than Linux on this issue.

This should just work even with the legacy Solaris bourne shell:
Code:
for file in `ls *.bd`
do
      echo "proutil dbname -C load $file" >> $log
done
 
  


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