I try with a UNIX shell script to do some actions in each subdirectories. Here is my script:
#!/bin/sh
DIRS=`ls -Q`
for userdir in $DIRS do #do some action on each dir echo $userdir done
My problem is that I have directories with whitespaces in their name. For example I have the following directories:
test 1 test 2 test 3 test 4
I get the following output: "test 1" "test 2" "test 3" "test 4"
I would expect the following: "test 1" "test 2" "test 3" "test 4"
In the variable DIRS I get the following value: "test 1" "test 2" "test 3" "test 4" The problem is that in the list for the for-loop each token is separated by a whitespace. Although I execute 'ls -Q' to get double quotes around the names of directories, the for-loop still "sees" whitespaces in the double quoted string! How can I fix this problem? Any help would be appreciated!
Cédric Pillonel wrote: > I try with a UNIX shell script to do some actions in each subdirectories. > Here is my script:
> #!/bin/sh
> DIRS=`ls -Q`
> for userdir in $DIRS > do > #do some action on each dir > echo $userdir > done
> My problem is that I have directories with whitespaces in their name. For > example I have the following directories:
> test 1 > test 2 > test 3 > test 4
> I get the following output: > "test > 1" > "test > 2" > "test > 3" > "test > 4"
> I would expect the following: > "test 1" > "test 2" > "test 3" > "test 4"
> In the variable DIRS I get the following value: "test 1" "test 2" "test 3" > "test 4" > The problem is that in the list for the for-loop each token is separated by > a whitespace. Although I execute 'ls -Q' to get double quotes around the > names of directories, the for-loop still "sees" whitespaces in the double > quoted string! > How can I fix this problem? Any help would be appreciated!
Once the quotes are "inside" the variable, they are not treated as shell meta characters.
Better: for userdir in * do workon "$userdir" # quotes necessary echo "$userdir" # not strictly necessary done
Take a look at set -x to help in finding out.
-- Josef Möllers (Pinguinpfleger bei FSC) If failure had no penalty success would not be a prize -- T. Pratchett
"Cédric Pillonel" <cedric.pillo...@swisscom.com> writes: > I try with a UNIX shell script to do some actions in each subdirectories. > Here is my script:
> #!/bin/sh
> DIRS=`ls -Q` > for userdir in $DIRS > do > #do some action on each dir > echo $userdir > done
mkdir /tmp/ex ; cd /tmp/ex ; mkdir 'a b' c 'd e' f DIRS=( * ) for userdir in "${DIRS[@]}" ; do echo $userdir done
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> My problem is that I have directories with whitespaces in their name. For > example I have the following directories:
> test 1 > test 2 > test 3 > test 4
> I get the following output: > "test > 1" > "test > 2" > "test > 3" > "test > 4"
As you should.
> I would expect the following: > "test 1" > "test 2" > "test 3" > "test 4"
Word splitting does not know about quotes.
> In the variable DIRS I get the following value: "test 1" "test 2" "test 3" > "test 4"
> The problem is that in the list for the for-loop each token is separated by > a whitespace. Although I execute 'ls -Q' to get double quotes around the > names of directories, the for-loop still "sees" whitespaces in the double > quoted string! > How can I fix this problem? Any help would be appreciated!
Don't use ls. Quote your variables.
-- Chris F.A. Johnson, author | <http://cfaj.freeshell.org> Shell Scripting Recipes: | My code in this post, if any, A Problem-Solution Approach | is released under the 2005, Apress | GNU General Public Licence
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