You can do this as follows:
[[ $(find /var/mobile/Applications/*/AppName.app/ -name filename.txt -print -quit | wc -l) -gt 0 ]] && echo "The File Exists" || echo "The File Does Not Exist"
質問
I am trying to find if a file exist in an iPhone application directory
Unfortunately, apps directory differs from a device to another
On my device, i use the following command to see if the file exists:
if [[ -f "/var/mobile/Applications/D0D2B991-3CDA-457B-9187-1F02A84FF3AB/AppName.app/filename.txt" ]]; then
echo "The File Exists";
else
echo "The File Does Not Exist";
fi
I want a command that would automatically search if the file exist without the need to specify the "variable" name inside the path.
I tried this:
if [[ -f "/var/mobile/Applications/*/AppName.app/filename.txt" ]]; then
echo "The File Exists";
else
echo "The File Does Not Exist";
fi
But no luck, it didn't find the file,
Maybe because i have 2 path of /var/mobile/Applications/*/AppName.app/
since i have cloned the app.
I would like to get a way to be able to find if the file filename.txt
exists inside any folder named AppName.app
inside this directory /var/mobile/Applications/*/
解決
You can do this as follows:
[[ $(find /var/mobile/Applications/*/AppName.app/ -name filename.txt -print -quit | wc -l) -gt 0 ]] && echo "The File Exists" || echo "The File Does Not Exist"
他のヒント
The -f
test can only take one argument. You would need to put it in a loop to check if some glob exists and its matches some regular file, i.e.
shopt -s nullglob
found=
for file in /var/mobile/Applications/*/AppName.app/filename.txt; do
[[ -f $file ]] && found=: && break
done
[[ -n $found ]] && echo "The File Exists" || echo "The File Does Not Exist"
If you're not sure specifically where the file is located you can use find, doing something like below which will exit early if found. (should work for gnu
find, haven't tested on bsd
)
if [[ -f $(find /some_root_directory -type f -name 'filename.txt' -print -quit) ]]; then
echo "The File Exists"
else
echo "The File Does Not Exist"
fi
# if a glob matches nothing, remove it instead of leaving the literal glob
shopt -s nullglob
# stick all matches in an array
files=( /var/mobile/Applications/*/AppName.app/filename.txt )
case "${#files[@]}" in
0 ) echo "Sorry, no such file." ;;
1 ) echo "The file exists: ${files[0]}" ;;
* ) echo "There are multiple files matching this pattern: ${files[*]}" ;;
esac
I like this technique for the purpose:
if find /var/mobile/Applications/*/AppName.app/ -name filename.txt -print -quit | grep -q .; then
echo "The File Exists"
else
echo "The File Does Not Exist"
fi
This has some advantages over this form:
[[ $(find ..... -print -quit | wc -l) -gt 0 ]]
Because:
$()
subshellwc
-gt
operator[[ ... ]]
Basically it's a find ... | grep -q .
versus [[ $(find ... | wc -l) -gt 0 ]]
Or find ... | grep -q .
versus [[ -f $(find ...) ]]