![]() ![]() If you can see an r in the set then that set has read permissions granted. Each set of 3 characters can contain either – or r, w, and x. The first set of 3 refers to the owner, the second set of 3 refer to user groups and the final set of three refer to others. The next 9 characters are arranged in 3 sets of 3. If we ran ls -l and a directory was listed this first character would be a d. The first – indicates that the object on the list is a file. ![]() We are interested in the first 10 characters on the listing which for our test file read - rw- rw- r. We should see that test1.txt has been created. Using ls -l gives us a lot more information about the items returned on the list. List the contents of the directory using ls -l. ![]() Create a new directory called test_directory $ mkdir test_directoryĢ. You can replace it with bash or any shell of your liking.1. It routes all the generated mv commands to the shell interpreter. Use this together with find to generate a list of commands that will be executed (handy to verify what will be done without actually doing it) FOO/bar if that directory happens to exist. The -T is very important here - it treats the target file as a directory. FOO/BAR, noting that no change has been made). FOO/bar already exists, it outputs something like. The -v option makes mv output every change that it makes (or doesn't make - if. The -n option of mv makes sure existing lowercase files are not overwritten. The directory is left intact, but the filename is transformed to lowercase. The regex itself consists of two captures: the part up until the last / (which is the directory of the file), and the filename itself. The -n option stops sed from printing the input, and the p command in the search-and-replace regex outputs the replaced text. ![]() This part reads the files outputted by find and formats them in a mv command using a regular expression. Use this after the complete rename command to search for files that still haven't been replaced because of file name collisions or errors. This comand in itself is particularly useful to finding the files that you want to rename in the first place. FOO though, but that one is listed later on (this is why -depth is important). The -name filter only applies to the base file name, not the full path. foo), but only for files that contain an uppercase character. to whatever directory you want to process), using a depth-first search (eg., it will list. This will find any file from the current directory (change. What follows is an explanation of each part of the command: Above command worked for me without any issues. FOO/BAR even though that path is no longer valid). rename is not available, and many of the variations of find fail because it seems to stick to the older name of the already renamed path (eg, if it finds. I haven't tried the more elaborate scripts mentioned here, but none of the single commandline versions worked for me on my Synology NAS. How to convert a string to lower case in Bash?įind. My script is based on these excellent answers: Mv -T "$file" "$" & mv -T "$" "$newname"Įcho "ERROR: Name already exists: $newname" # the extra step with the temp filename is for case-insensitive filesystems Newname=$(dirname "$file")/$(basename "$file" | awk "") # adapt the awk command if you wish to rename to something other than lowercase # adapt the following command _IF_ you want to deal with specific files/dirsįind. Note that by "handles Unicode" I mean that it will indeed convert their case (not ignore them like answers that use tr). Finally it's highly adaptable: you can tweak the find command to target the files/dirs you wish and you can tweak awk to do other name manipulations. It also reports collisions if any (leaving the filename in uppercase) and of course renames both files & directories and works recursively. This script handles filenames with spaces, quotes, other unusual characters and Unicode, works on case insensitive filesystems and most Unix-y environments that have bash and awk installed (i.e. Lengthy But "Works With No Surprises & No Installations" ![]()
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