I have this directory structure. How to list only files in all F40 sub sub folders in bash? Thanks
The find command, combined with ls, can do it. For instance like this:
find DIR -type d -name F40 -exec ls {} \;
As the GNU find man page says, the find command is used for file search in a directory hierarchy.
In this case find searches the DIR folder for folders (-type d) explicitly named F40, and then it executes the ls (list directory) command to show what's inside.
You can your xargs with find command
find DIR -type d -name F40 | xargs ls
Related
Currently I am trying this:
diff -r /develop /us-prod
which shows all the differences between the two, but all I really care about here is a file named schema.json, which is guaranteed to be there in all directories, but this file can be different.
I want to diff these two directories, but only if the file name is schema.json.
I see that you can do -x to exclude files, but it is difficult to say which other files could be in there.
There are some guaranteed files to be there, but some are not. Is there more an "inclusion" than an exclude?
You can try this :
find /develop -type f -name schema.json -exec bash -c\
'diff "$1" "/us-prod${1#/develop}"' _ {} \;
Assuming the both directories have just one schema.json file for each directory
including their subdirectories, would you please try:
diff $(find /develop -type f -name schema.json) $(find /us-prod -type f -name schema.json)
I am trying to copy all empty files from the home directory into a folder that is on the desktop, using this:
find ~ -empty -exec cp {} /desktop/emptyfolder \;
However, I can't make it work.
Are there any other possible solutions to achieve this? Or maybe to write a bash script that could do this?
Add -type f to the find command to force it to search for files and not directories and so:
find ~ -empty -type f -exec cp {} /desktop/emptyfolder \;
The parent directory has 5 sub folders, each subfolder has .mp4s, .txt, and other file extensions, how to be in the parents folder and enter a terminal command to only pull all *.mp4s into another specified folder in Bash.
find /path/to/src -type f -name “*.mp4” | xargs -iF mv F /path/to/dst
I stand in the specified parent directory and move the files to the other specified folder that I assume is ../other-spec-dir ( a folder that is not in the search path of find)
find . -type f -name "*.mp4s" -exec mv {} ../other-spec-dir \;
Note that if there are files with identical name only the last one will survive.
As an example, in a directory /home/hel/files/ are thousends of files and hundreds of directories.
An application saves there its output files with special characters in the file names.
I want to replace these special characters with underscores in all file names. e.g. -:"<>#
I wrote a bash script which simply repeats a command to rename the files using Linux/Unix 'rename'.
Example: file name: rename.sh
#!/bin/bash
rename "s/\'/_/g" *
rename 's/[-:"<>#\,&\s\(\)\[\]?!–~%„“;│\´\’\+#]/_/g' *
rename 'y/A-Z/a-z/' *
rename 's/\.(?=[^.]*\.)/_/g' *
rename 's/[_]{2,}/_/g' *
I execute the following find command:
find /home/hel/files/ -maxdepth 1 -type f -execdir /home/hel/scripts/rename.sh {} \+
Now the issue:
This works fine, except the fact, that it renames subdirectories too, if they have the searched characters in their name.
The find command searches just for files and not for directories.
I tried some other find variations like:
find /home/hel/files/ -maxdepth 1 -type f -execdir sh /home/hel/scripts/rename.sh {} \+
find /home/hel/files/ -maxdepth 1 -type f -execdir sh /home/hel/scripts/rename.sh {} +
find /home/hel/files/ -maxdepth 1 -type f -execdir sh /home/hel/scripts/rename.sh {} \;
They are all working, but with the same result.
What is not working:
find /home/hel/files/ -maxdepth 1 -type f -exec sh /home/hel/scripts/rename.sh {} \+
This one is dangerous, because it renames the directories and files in the current directory, where you call the find command too.
Maybe one has an idea, why this happens or has a better solution.
The script rename.sh did not use its command line arguments at all, but instead searched files and directories (!) on its own using the glob *.
Change your script to the following.
#!/bin/bash
rename -d s/\''/_/g;
s/[-:"<>#\,&\s\(\)\[\]?!–~%„“;│\´\’\+#]/_/g;
y/A-Z/a-z/;
s/\.(?=[^.]*\.)/_/g;
s/[_]{2,}/_/g' "$#"
Then use find ... -maxdepth 1 -type f -exec sh .../rename.sh {} +.
Changes Made
Use "$#" instead of * to process the files given as arguments rather than everything in the current directory.
Execute rename only once as a 2nd rename wouldn't find the files specified with "$#" after they were renamed by the 1st rename.
Use the -d option such that only the basenames are modified. find always puts a path in front of the files, at the very least ./. Without this option rename would change ./filename to mangledPath/newFilename and therefore move the file to another directory.
Note that man rename is a bit misleading
--path, --fullpath
Rename full path: including any directory component. DEFAULT
-d, --filename, --nopath, --nofullpath
Do not rename directory: only rename filename component of path.
For a given path rename -d 's...' some/path/basename just processes the basename and ignores the leading components some/path/. If basename is a directory it will still be renamed despite the -d option.
I have some folder hierarchy, in some of the folders there are images, I need a shell script which can list all images and copy them into one specified folder, where listing them is not important, I just want to copy all images into a folder?
I know I can
ls -R *.png
but how do I copy them all to one folder?
Thanks!
Update: As glenn jackman has pointed out, this would be slightly more efficient to use over the answer I provided:
file . -type f -name \*.png | xargs cp -t destination
For the explanation, see glenn's comments that follow this answer.
One way is to use find:
find . -type f -name "*.png" -exec cp {} ~/path/to/your/destination/folder \;
Explanation:
find is used to find files / directories
. start finding from the current working directory (alternatively, you can specify a path)
-type f: only consider files (as opposed to directories)
-name "*.png": only consider those with png extension
-exec: for each such result found, do something (see below)
cp {} ~/path/to/your/destination/folder \;: this is the do something part: copy each such result found (substituted into the {}) to the destination specified.
To copy multiple file patterns in single go we can use -regex instead -name
find . -type f -regex '.*\(jpg\|jpeg\|png\|gif\|mp4\|avi\|svg\|mp3\|vob\)' -exec cp {} /path/to/your/destination/folder \;