Question

EDIT: Here is my updated code:

#!/bin/sh
files=`ls`
if [ $# -ne 1 -o -f $1 ]
then
        echo "Usage: $0 <directory>"
        exit 1
fi
if [ ! -e $1 ]
then
        echo "$1 not found"
        exit 1

elif [ -d $1 ]
then
cd $1

for f in $files
do
        if [ ! -d "$f" ]
        then
           if [ ! -s "$f" ]
            then
              rm -r "$f"
        echo "File: $f was removed."
        else
        continue
        fi
fi
done


echo "Name		Links		Owner		Date"

for f in $files
        do
                find "$f" -type f -printf "%f		 %n		 %u	 %TH %Tb %TY
"
        done
        exit 0
fi

I fixed all of the spacing issues, changed #!bin/sh to #/bin/bash, and added quotes to "$f". However I m still getting lots of errors.

ava@kosh:~/test$ ./delDir d1 rm: cannot remove d1 : No such file or directory File: d1 was removed. rm: cannot removedelDir : No such file or directory File: delDir was removed. rm: cannot remove delDir2 : No such file or directory File: delDir2 was removed. rm: cannot removee1 : No such file or directory File: e1 was removed. rm: cannot remove e2 : No such file or directory File: e2 was removed. rm: cannot removemake_d1 : No such file or directory File: make_d1 was removed. Name Links Owner Date find: d1: No such file or directory find: delDir: No such file or directory find: delDir2: No such file or directory find: e1: No such file or directory find: e2: No such file or directory find: make_d1: No such file or directory ne1 2
ava 22 Nov 2009 ne2
2 ava 22 Nov 2009

Does anyone know what else I m doing wrong?

~~Here s my code:~~
#!/bin/sh
files=`ls`
if [ $# -ne 1 ]
then
        echo "Usage: $0 <directory>"
        exit 1
fi
if [ ! -e $1 ]
then
        echo "$1 not found"
        exit 1

elif [ -d $1 ]
then
cd $1

for f in $files
do
        if [! -d $f]
        then
           if [ ! -s $f ]
            then
              rm-r $f
        echo "File: $f was removed."
        else
        continue
        fi
fi
done


echo "Name		Links		Owner		Date"

for f in $files
        do
                find $f -type f -printf "%f		 %n		 %u	 %TH %Tb %TY
"
        done
        exit 0
fi
Here are my questions:

If I execute the script with something that is NOT an ordinary file AND is NOT a directory I want it to say "Usage: Filename directory" (see line 5). I know I can do this with 2 if statements but is it possible to create an or statement for this in bash?

When I run the script I keep getting errors like this:

./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found ./delDir: 39: [!: not found Name
Links Owner Date find: d1: No such file or directory find: delDir: No such file or directory find: delDir2: No such file or directory e1 1
ava 22 Nov 2009 e2
1 ava 22 Nov 2009 find: make_d1: No such file or directory ne1 2
ava 22 Nov 2009 ne2
2 ava 22 Nov 2009

I believe I am getting these errors because the for loop is first looking for the file that the user typed in (the directory it changed into) and cannot find it. How can if fix this? 3. Are there any more errors you can see?

Answer 1

Another issue is that at the start of the script you do

files = `ls`

but then you cd to a different directory and try to loop round $files deleting them - of course this will not work since you have changed directories.

move the ls line to after you have changed directory.

Answer 2

You forgot to put a space after [ and before ] on the line saying:

if [! -d $f]

AND tests are created using -a, -o is equal to OR:

if [ ! -d $f -a -f $f ]
if [ ! -d $f -o -f $f ]

Answer 3

Try putting a space between the [ and !.

Answer 4

The other answers are correct, here s why: [ is a command. If you type "[!", the shell looks for a command by that name.

Answer 5

I m augmenting other answers here ... every time I see a bash question start with #! /bin/sh I have to jump in, its a moral imperative.

Keep in mind that /bin/sh points to the POSIX invocation of bash, or a completely different "posixically correct" shell like dash. /bin/sh is often a symbolic link that causes bash to alter its behavior to be more POSIX compliant. Hence, lots of goodies won t work as usual, or you may find your code being parsed by another shell.

In other words, /bin/sh == POSIX_ME_HARDER, but .. yikes! == is a bashism :)

If you want bash, use #!/bin/bash

Beyond that, singingwolfboy s answer should fix your immediate problem :)

Answer 6

The others got the spacing issue with the [, but I noticed a couple other things.

You probably need a space in your rm command in line 23:

rm -r $f

Also, it s usually good practice to double quote file paths. This will allow your script to handle filenames with spaces and other special characters correctly.

rm -r "$f"

友情链接