I have a root folder (03_COMPLETE), inside which are 40 subfolders two levels down (all called CHILD_PNG) that contain .png files I want to rename. There are 6 complete folders I have to go through, with tens of thousands of files. All files are currently named like this: 123456_lifestyle.png, I want them named to lifestyle_123456.png.
My code:
find . -mindepth 2 -type f -iname '*.png' -print0 | xargs -0 /usr/local/bin/rename -v 's/\/([0-9]+)_([A-Za-z]+[0-9])/\/$2_$1/'\;
If I run this on an individual folder of .png files (without using -mindepth) it renames them. However if I run it on the root 03_COMPLETE directory to try and do all the renaming at once, I get lines of errors like this:
Can't rename
'/Volumes/COMMON-LIC-PHOTO/RETOUCHING/04_DELIVERY_PNG/Computer1/03_COMPLETE/06052017_NYS5_W_1263_Output/CHILD_PNG/123456_lifestyle.png'
to
'/Volumes/COMMON-LIC-PHOTO/RETOUCHING/04_DELIVERY_PNG/Computer1/03_COMPLETE/NYS5_06052017_W_1263_Output/CHILD_PNG/123456_lifestyle.png':
No such file or directory
I think it might have something to do with the names of the folder 1 level down (eg. here NYS5_06052017_W_1263_Output) because it did rename on a couple of folders named Bustform_000. Most of the folders though start with a number like 06052017.
I can't figure out why this will work at the .png folder level but won't work on the root folder, and why it will rename in a few folders but most of them it won't.
Also what is weird is that in the error it says it is trying to rename 123456_lifestyle.png to the same filename. Why would it do that? Any ideas?
This might help:
find 03_COMPLETE -type f | xargs -n 1 rename -n 's|/([^_/]*)_([^_/]*).png$|/$2_$1.png|'
Remove -n if output is okay.
You could change directory into each of the CHILD_PNG directories and run a single rename in there on all the files so you don't exec a new rename for every single file:
find 03_COMPLETE -type d -name CHILD_PNG -execdir bash -c "cd {}; rename -n '...' *.png" \;
The issue with your original Regex is, it matches the directory names of the form "xxxxx_yyyyy" and tries to convert them into "yyyyy_xxxxx", which, of course, doesn't exist. Since you're interested in changing only the filenames, and all of them end with .png, you can use the below Regex. Additionally, as you're trying to match a literal '/', you can choose a different character like '|' as delimiter to make the Regex easier to read
's|/([0-9]+)_([A-Za-z]+[0-9]*)(\.[Pp][Nn][Gg])|/$2_$1$3|'
Related
I want to copy all files with specific extensions recursively in bash.
****editing****
I've written the full script. I have list of names in a csv file, I'm iterating through each name in that list, then creating a directory with that same name somewhere else, then I'm searching in my source directory for the directory with that name, inside it there are few files with endings of xlsx,tsv,html,gz and I'm trying to copy all of them into the newly created directory.
sample_list_filepath=/home/lists/papers
destination_path=/home/ds/samples
source_directories_path=/home/papers_final/new
cat $sample_list_filepath/sample_list.csv | while read line
do
echo $line
cd $source_directories_path/$line
cp -r *.{tsv,xlsx,html,gz} $source_directories_path/$line $destination_path
done
This works, but it copies all the files there, with no discrimination for specific extension.
What is the problem?
An easy way to solve your problem is to use find and regex :
find src/ -regex '.*\.\(tsv\|xlsx\|gz\|html\)$' -exec cp {} dest/ \;
find look recursively in the directory you specify (in my example it's src/), allows you to filter with -regex and to apply a command for matching results with -exec
For the regex part :
.*\.
will take the name of the file and the dot before extension,
\(tsv\|xlsx\|gz\|html\)$
verify the extension with those you want.
The exec block is what you do with files you got from regex
-exec cp {} dest/ \;
In this case, you copy what you got ({} meaning) to the destination directory.
I'm trying to find all files and folders in a certain folder and all sub-folders and replace all special characters. All spaces should be replaced with dots and everything else should just be deleted. I've tried a few different ways but when I use "mv" it doesn't seem to preserve the directory structure and when I use "rename" along with "find" it doesn't want to go recursively.
The closest I've gotten is this:
for f in **/; do mv "$f" `echo $f | tr " " . | tr -dc '[:alnum:].'`; done
But I think the loop is broken somewhere as it adds filenames together and places the result in the parent directory.
You could do:
find . -depth -execdir rename 's/\s/./g; s/[^[:alnum:]./]//g' {} +
A couple of points here:
-depth -- traverse the directory hierarchy depth-first. This ensures that you rename the files in a folder before you rename the folder
-execdir -- executes the command in the subdirectory -- {} will now be ./filename instead of ./dir1/dir2/filename
this is the perl-flavoured rename, check your man page.
I have a complicated scenario. In my current working directory, I have several subdirectories. Each subdirectory has a number of files, but I'm only interested in one: RAxML_bestTree.best. The file name is the same for each corresponding file in every subdirectory, i.e., they are not unique. Thus, a copy command to a new subdirectory will not work since one RAxML_bestTree.best will be shown and overwritten 514 times.
I need to take the content of each subdirectory's RAxML_bestTree.best and have it placed into a file all_RAxML_bestTrees.txt either in the current working directory or a new subdirectory. I have tried the following, which appears to print the contents to screen but not to file:
find . -type f -name \RAxML_bestTree.best -exec cat {} all_RAxML_bestTrees.txt \;
Nevermind, found my issue:
find . -type f -name \RAxML_bestTree.best -exec cat > all_RAxML_bestTrees.txt \;
I have been trying to iterate though a directory structure where I want to change the file extension from .mv4 to .mp4.
The problem is that there are spaces in many of the file names, and I have not been successful in iterating the directory structure.
I am doing this in the terminal.
There are examples for changing extensions in a single directory, but not for subdirectories and where the file names have spaces in them.
You can use the -exec argument of "find" to do this:
find . -type f -name "*.mv4" -exec sh -c 'mv "$1" "${1%.mv4}.mp4"' _ {} \;
Issue the "find" command from the base directory of your directory structure containing the mv4 files, or specify that directory in place of the "." right after "find" in the above line of code.
I tested this on my Mac running Yosemite. It works for me with filenames that contain spaces.
I have a folder called "week1", and in that folder there are about ten other folders that all contain multiple files, including one called "submit.pdf". I would like to be able to copy all of the "submit.pdf" files into one folder, ideally using Terminal to expedite the process. I've tried cp week1/*/submit.pdf week1/ as well as cp week1/*/*.pdf week1/, but it had only been ending up copying one file. I just realized that it has been writing over each file every time which is why I'm stuck with one...is there anyway I can prevent that from happening?
You don't indicate your OS, but if you're using Gnu cp, you can use cp week1/*/submit.pdf --backup=t week/ to have it (arbitrarily) number files that already exist; but, that won't give you any real way to identify which-is-which.
You could, perhaps, do something like this:
for file in week1/*/submit.pdf; do cp "$file" "${file//\//-}"; done
… which will produce files named something like "week1-subdir-submit.pdf"
For what it's worth, the "${var/s/r}" notation means to take var, but before inserting its value, search for s (\/, meaning /, escaped because of the other special / in that expression), and replace it with r (-), to make the unique filenames.
Edit: There's actually one more / in there, to make it match multiple times, making the syntax:
"${ var / / \/ / - }"
take "var" replace every instance of / with -
find to the rescue! Rule of thumb: If you can list the files you want with find, you can copy them. So try first this:
$ cd your_folder
$ find . -type f -iname 'submit.pdf'
Some notes:
find . means "start finding from the current directory"
-type -f means "only find regular files" (i.e., not directories)
-iname 'submit.pdf' "... with case-insensitive name 'submit.dpf'". You don't need to use 'quotation', but if you want to search using wildcards, you need to. E.g.:
~ foo$ find /usr/lib -iname '*.So*'
/usr/lib/pam/pam_deny.so.2
/usr/lib/pam/pam_env.so.2
/usr/lib/pam/pam_group.so.2
...
If you want to search case-sensitive, just use -name instead of -iname.
When this works, you can copy each file by using the -exec command. exec works by letting you specify a command to use on hits. It will run the command for each file find finds, and put the name of the file in {}. You end the sequence of commands by specifying \;.
So to echo all the files, do this:
$ find . -type f -iname submit.pdf -exec echo Found file {} \;
To copy them one by one:
$ find . -type f -iname submit.pdf -exec cp {} /destination/folder \;
Hope this helps!