Question regarding cat command

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# 1  
Old 08-06-2009
Question regarding cat command

Hello Friends,

I have a question, i am trying to write a shell script in the bash shell.


Y=`ls $FIX_XML_PATH | grep xml`
echo $Y
cat $Y

in this case when i do the echo $Y command it gives me the file name and when i do cat $Y, is give the error that not a file or directory.

What am i doing wrong can u please suggest?

# 2  
Old 08-06-2009
adi, can you tell me what is the value of Y. I think you are getting more than one filename. In that case, it may throw the error.

Can you run the script as
sh -vx <scriptname>

paste the logs that will help us in figuring out the error easily.
# 3  
Old 08-06-2009
Quote the variable if you have spaces in your filename:

cat "$Y"

# 4  
Old 08-06-2009
Some comments:
- If you use bash, then start your script with /bin/bash.
- NAWK and AWK are unused, they are distracting.
- It is possible you are using a version of ls that add some characters to the file name that makes it unusable by cat.
- It is also possible the xml filename contains blanks, in such case, you'll need to use double quotes at several places in your script.
- mac4rfree suggestion is incorrect, multiple files are happily displayed by cat.

What says:
echo $Y | od -c

# 5  
Old 08-06-2009

This is probably because the script is not in the same directory as the xml files, so you need to add the path to the filenames.

One option is:

Y=`ls $FIX_XML_PATH | grep xml`
echo $Y
echo $Y | awk -v D=$FIX_XML_PATH -v RS=" " '{system( "cat " D $1)}'

Or a better option is to change the line:
Y=`ls $FIX_XML_PATH/*.xml`

Last edited by Scott; 08-06-2009 at 12:33 PM..
# 6  
Old 08-06-2009
I chaged the script a little bit,

FIX_FILE=`ls $FIX_XML_PATH | grep xml`

echo $FIX_FILE

Variable $FIX_FILE store a xml file.Smilie


$ sh -vx

+ FIX_XML_PATH=/home/administrator/testfix/fix
FIX_FILE=`ls $FIX_XML_PATH | grep xml`
ls $FIX_XML_PATH | grep xml
++ ls /home/administrator/testfix/fix
++ grep xml

echo $FIX_FILE
+ echo
+ cat
B-TESTFIX-CC-D090803_for_7.1.2.0000-7-1-0-02-00-2009B-D090617.xml: No su
or directory
# 7  
Old 08-06-2009
franklin, one interesting i found,

ad02 $ cat $a
ad02 $ cat "$a"
cat: 0652-050 Cannot open aout.xml
ad02 $ echo $a
aout.xml bout.xml cout.xml
ad02 $

here without quotes, it opens all the three files, but with quotes, it is throwing an error.
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