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lowercasing & converting files to text an empty *.txt file appeared

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0

I check if there's some files of a certain kind inside a folder to lowercase the extension and then extract the content this way:

existDoc=""$(ls | grep .DOC | wc -l)

if [ $existDoc -gt 0 ]; then
 for file in *.DOC
 do
 mv $file $(basename "$file" .DOC)".doc"
 done
fi

and then conversion

for word in *.doc
 do
 text_doc=""$(basename "$word" .doc)
 sudo catdoc $word > $text_doc".txt"
 done

The issue is that a new empty file is created named "*.doc.txt" with no apparent reason.

bash

share|improve this question

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you used $text_doc and $textdoc in your question. is this a typo?
  
  – michas
  Jul 29 '16 at 15:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use set -x to see what is going on.
  
  – michas
  Jul 29 '16 at 15:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You can rename the files with rename "s/.DOC$/.doc/" *. Use rename -n "s/.DOC$/.doc/" * to check the result before.
  
  – Marco
  Jul 29 '16 at 16:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you could simplify your "for file in *.DOC" segment by just removing the "if" from the outside -- if there are no *.DOC files, the loop won't execute anything. Just like your second segment does with *.doc files.
  
  – Jeff Schaller
  Jul 29 '16 at 16:42
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  since you've tagged bash, see also: mv "$file" "$file,,"
  
  – Jeff Schaller
  Jul 29 '16 at 16:44
  
  

  
  
  
  

 | 
show 3 more comments

0

I check if there's some files of a certain kind inside a folder to lowercase the extension and then extract the content this way:

existDoc=""$(ls | grep .DOC | wc -l)

if [ $existDoc -gt 0 ]; then
 for file in *.DOC
 do
 mv $file $(basename "$file" .DOC)".doc"
 done
fi

and then conversion

for word in *.doc
 do
 text_doc=""$(basename "$word" .doc)
 sudo catdoc $word > $text_doc".txt"
 done

The issue is that a new empty file is created named "*.doc.txt" with no apparent reason.

bash

share|improve this question

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you used $text_doc and $textdoc in your question. is this a typo?
  
  – michas
  Jul 29 '16 at 15:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use set -x to see what is going on.
  
  – michas
  Jul 29 '16 at 15:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You can rename the files with rename "s/.DOC$/.doc/" *. Use rename -n "s/.DOC$/.doc/" * to check the result before.
  
  – Marco
  Jul 29 '16 at 16:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you could simplify your "for file in *.DOC" segment by just removing the "if" from the outside -- if there are no *.DOC files, the loop won't execute anything. Just like your second segment does with *.doc files.
  
  – Jeff Schaller
  Jul 29 '16 at 16:42
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  since you've tagged bash, see also: mv "$file" "$file,,"
  
  – Jeff Schaller
  Jul 29 '16 at 16:44
  
  

  
  
  
  

 | 
show 3 more comments

I check if there's some files of a certain kind inside a folder to lowercase the extension and then extract the content this way:

existDoc=""$(ls | grep .DOC | wc -l)

if [ $existDoc -gt 0 ]; then
 for file in *.DOC
 do
 mv $file $(basename "$file" .DOC)".doc"
 done
fi

and then conversion

for word in *.doc
 do
 text_doc=""$(basename "$word" .doc)
 sudo catdoc $word > $text_doc".txt"
 done

The issue is that a new empty file is created named "*.doc.txt" with no apparent reason.

bash

share|improve this question

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

existDoc=""$(ls | grep .DOC | wc -l)

if [ $existDoc -gt 0 ]; then
 for file in *.DOC
 do
 mv $file $(basename "$file" .DOC)".doc"
 done
fi

for word in *.doc
 do
 text_doc=""$(basename "$word" .doc)
 sudo catdoc $word > $text_doc".txt"
 done

share|improve this question

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

share|improve this question

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

edited 3 mins ago

Rui F Ribeiro

41.3k1481140

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

asked Jul 29 '16 at 14:35

jomawebjomaweb

27328

1 Answer
1

active

oldest

votes

5

A couple things:

• 
  Do not parse the output of ls.


• 
  Quote your variables.


• 
  sudo? Why?

If I understand you correctly, you would like to lowercase the extension of all *.DOC filenames and use catdoc to create text files of them.

shopt -s nullglob
for doc in ./*.DOC; do
 new_doc="$doc%.DOC.doc"
 txt_doc="$doc%.DOC.txt"

 catdoc "$doc" >"$txt_doc"
 mv "$doc" "$new_doc"
done

Or even shorter:

shopt -s nullglob
for doc in ./*.DOC; do
 catdoc "$doc" >"$doc%.DOC.txt"
 mv "$doc" "$doc%.DOC.doc"
done

• The $doc%.DOC is using the $parameter%word parameter expansion of bash (or any POSIX shell) to remove the .DOC suffix from the filename in $doc.


• Setting the nullglob shell option will ensure that nothing is matched by *.DOC if there are no files with the .DOC suffix. If not set, I would get the string *.DOC in $doc if there were no .DOC files.


• Use a ./ prefix in ./*.DOC to avoid problems with filenames starting with -.

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sudo is used because the destination folder is owned by root. Otherwise the files would not be written Kusalananda
  
  – jomaweb
  Jul 31 '16 at 11:56
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb In that case you either need sudo for the mv as well, or to run the whole thing with sudo in a script. I would personally do all the processing first, and then move the files in place with sudo mv.
  
  – Kusalananda
  Jul 31 '16 at 11:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  using for doc in *.DOC gives me an error when no DOC file is present
  
  – jomaweb
  Jul 31 '16 at 12:03
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb This is probably because you did not set shopt -s nullglob?
  
  – Kusalananda
  Jul 31 '16 at 12:36
  

  
  
  
  

add a comment | 

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5

A couple things:

• 
  Do not parse the output of ls.


• 
  Quote your variables.


• 
  sudo? Why?

If I understand you correctly, you would like to lowercase the extension of all *.DOC filenames and use catdoc to create text files of them.

shopt -s nullglob
for doc in ./*.DOC; do
 new_doc="$doc%.DOC.doc"
 txt_doc="$doc%.DOC.txt"

 catdoc "$doc" >"$txt_doc"
 mv "$doc" "$new_doc"
done

Or even shorter:

shopt -s nullglob
for doc in ./*.DOC; do
 catdoc "$doc" >"$doc%.DOC.txt"
 mv "$doc" "$doc%.DOC.doc"
done

• The $doc%.DOC is using the $parameter%word parameter expansion of bash (or any POSIX shell) to remove the .DOC suffix from the filename in $doc.


• Setting the nullglob shell option will ensure that nothing is matched by *.DOC if there are no files with the .DOC suffix. If not set, I would get the string *.DOC in $doc if there were no .DOC files.


• Use a ./ prefix in ./*.DOC to avoid problems with filenames starting with -.

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sudo is used because the destination folder is owned by root. Otherwise the files would not be written Kusalananda
  
  – jomaweb
  Jul 31 '16 at 11:56
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb In that case you either need sudo for the mv as well, or to run the whole thing with sudo in a script. I would personally do all the processing first, and then move the files in place with sudo mv.
  
  – Kusalananda
  Jul 31 '16 at 11:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  using for doc in *.DOC gives me an error when no DOC file is present
  
  – jomaweb
  Jul 31 '16 at 12:03
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb This is probably because you did not set shopt -s nullglob?
  
  – Kusalananda
  Jul 31 '16 at 12:36
  

  
  
  
  

add a comment | 

5

A couple things:

• 
  Do not parse the output of ls.


• 
  Quote your variables.


• 
  sudo? Why?

If I understand you correctly, you would like to lowercase the extension of all *.DOC filenames and use catdoc to create text files of them.

shopt -s nullglob
for doc in ./*.DOC; do
 new_doc="$doc%.DOC.doc"
 txt_doc="$doc%.DOC.txt"

 catdoc "$doc" >"$txt_doc"
 mv "$doc" "$new_doc"
done

Or even shorter:

shopt -s nullglob
for doc in ./*.DOC; do
 catdoc "$doc" >"$doc%.DOC.txt"
 mv "$doc" "$doc%.DOC.doc"
done

• The $doc%.DOC is using the $parameter%word parameter expansion of bash (or any POSIX shell) to remove the .DOC suffix from the filename in $doc.


• Setting the nullglob shell option will ensure that nothing is matched by *.DOC if there are no files with the .DOC suffix. If not set, I would get the string *.DOC in $doc if there were no .DOC files.


• Use a ./ prefix in ./*.DOC to avoid problems with filenames starting with -.

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sudo is used because the destination folder is owned by root. Otherwise the files would not be written Kusalananda
  
  – jomaweb
  Jul 31 '16 at 11:56
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb In that case you either need sudo for the mv as well, or to run the whole thing with sudo in a script. I would personally do all the processing first, and then move the files in place with sudo mv.
  
  – Kusalananda
  Jul 31 '16 at 11:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  using for doc in *.DOC gives me an error when no DOC file is present
  
  – jomaweb
  Jul 31 '16 at 12:03
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @jomaweb This is probably because you did not set shopt -s nullglob?
  
  – Kusalananda
  Jul 31 '16 at 12:36
  

  
  
  
  

add a comment | 

A couple things:

• 
  Do not parse the output of ls.


• 
  Quote your variables.


• 
  sudo? Why?

If I understand you correctly, you would like to lowercase the extension of all *.DOC filenames and use catdoc to create text files of them.

shopt -s nullglob
for doc in ./*.DOC; do
 new_doc="$doc%.DOC.doc"
 txt_doc="$doc%.DOC.txt"

 catdoc "$doc" >"$txt_doc"
 mv "$doc" "$new_doc"
done

Or even shorter:

shopt -s nullglob
for doc in ./*.DOC; do
 catdoc "$doc" >"$doc%.DOC.txt"
 mv "$doc" "$doc%.DOC.doc"
done

• The $doc%.DOC is using the $parameter%word parameter expansion of bash (or any POSIX shell) to remove the .DOC suffix from the filename in $doc.


• Setting the nullglob shell option will ensure that nothing is matched by *.DOC if there are no files with the .DOC suffix. If not set, I would get the string *.DOC in $doc if there were no .DOC files.


• Use a ./ prefix in ./*.DOC to avoid problems with filenames starting with -.

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

shopt -s nullglob
for doc in ./*.DOC; do
 new_doc="$doc%.DOC.doc"
 txt_doc="$doc%.DOC.txt"

 catdoc "$doc" >"$txt_doc"
 mv "$doc" "$new_doc"
done

shopt -s nullglob
for doc in ./*.DOC; do
 catdoc "$doc" >"$doc%.DOC.txt"
 mv "$doc" "$doc%.DOC.doc"
done

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

edited Apr 13 '17 at 12:36

Community♦

1

edited Apr 13 '17 at 12:36

Community♦

1

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418

answered Jul 29 '16 at 15:12

KusalanandaKusalananda

134k17255418