Recurse through directories easily

find . -type f | while read file; do cp $file ${file}.bak; done
This is a simple case of recursing through all directories, adding the '.bak' extension to every file. Of course, the 'cp $file $file.bak' could be any code you need to apply to your recursion, including tests, other functions, creating variables, doing math, etc. Simple and clean recursion.

By: atoponce
2009-03-01 23:42:49

What Others Think

When it comes to acting on all these files, find can do it directly : find . -type f -exec cp {} {}.bak \;
raphink · 641 weeks and 3 days ago
right, except when you want to execute multiple lines of code. then find gets ugly with all the -exec switches. then when introducing logic, it gets even worse. no, with this example, you're using find for the recursion, then a while loop to operate on files, so you can nest several commands easily.
atoponce · 641 weeks and 3 days ago
You left out the quotation marks around your variable references - this code as it is will break when filenames have spaces.
asmoore82 · 640 weeks and 4 days ago
just for insanity's sake, *even with* the quotation marks, the code still breaks with filenames with newlines in them, but this does not: USAGE: recfindexec [code] recfindexec() { for dirs in "${1%/}"/*/; do [ -d "$dirs" ] && recfindexec "$dirs" "$2"; done for files in "${1%/}"/$2; do [ -f "$files" ] && { #YOUR CMDS IN HERE EX: ls "$files" } done } :P
asmoore82 · 640 weeks and 4 days ago
^^USAGE: recfindexec search_dir wildcard ex: recfindexec Videos "*.avi"
asmoore82 · 640 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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