Commands using find

Get the longest match of file extension (Ex. For 'foo.tar.gz', you get '.tar.gz' instead of '.gz')

If you have GNU findutils, you can get only the file name with

instead of

make a bunch of files with the same permissions, owner, group, and content as a template file

(handy if you have much to do w. .php, .html files or alike)

While `echo rm * | batch` might seem to work, it might still raise the load of the system since `rm` will be _started_ when the load is low, but run for a long time. My proposed command executes a new `rm` execution once every minute when the load is small.

Obviously, load could also be lower using `ionice`, but I still think this is a useful example for sequential batch jobs.

su www-apache/ftp user and then

check readable: find ~/ -type d \( -wholename '/dev/*' -o -wholename '/sys/*' -o -wholename '/proc/*' \) -prune -o -exec test -r {} \; -exec echo {} readable \; 2>/dev/null

check writable: find ~/ -type d \( -wholename '/dev/*' -o -wholename '/sys/*' -o -wholename '/proc/*' \) -prune -o -exec test -w {} \; -exec echo {} writable \; 2>/dev/null

the advantage to doing it this way is that you can adjust the max depth to get more recursive results and run it on non GNU systems. It also won't print trailing slashes, which can easily be removed, but can be slightly annoying..

You could run:

# for file in `find * -maxdepth 0 -type d`;do ls -d $file;done

and in the ls -d part of the command you can put in whatever parameters you want to get things like permissions, time stamps, and ownership.

This command is useful to recursively make executable all "*.sh" files in a folder.

This command is useful to apply chmod recursively in a determined kind of file.

Avoids the nested 'find' commands but doesn't seem to run any faster than syssyphus's solution.

Opening several files at once in Vim can be very easy in connection with find command.

This command will take the files in a directory, rename them, and then number them from 1...N.

Black belt stuff.

Hell of a time saver.

This checks jpeg data and metadata, should be grepped as needed, maybe a -B1 Warning for the first, and a -E "WARNING|ERROR" for the second part....

Linux users wanting to extract text from PDF files in the current directory and its sub-directories can use this command. It requires "bash", "ps2ascii" and "par", and the PARINIT environment variable sanely set (see man par). WARNING: the file "junk.sh" will be created, run, and destroyed in the current directory, so you _must_ have sufficient rights. Edit the command if you need to avoid using the file name "junk.sh"

Let the shell handle the repetition in stead of find :)

Executing pfiles will return a list of all descriptors utilized by the process

We are interested in the S_IFREG entries since they are pointing usually to files

In the line, there is the inode number of the file which we use in order to find the filename.

The only bad thing is that in order not to search from / you have to suspect where could possibly be the file.

Improvements more than welcome.

lsof was not available in my case

This is a modified version of the OP, wrapped into a bash function.

This version handles newlines and other whitespace correctly, the original has problems with the thankfully rare case of newlines in the file names.

It also allows checking an arbitrary number of directories against each other, which is nice when the directories that you think might have duplicates don't have a convenient common ancestor directory.

# find assumes email files start with a number 1-9

# sed joins the lines starting with " " to the previous line

# gawk print the received and from lines

# sort according to the second field (received+from)

# uniq print the duplicated filename

# a message is viewed as duplicate if it is received at the same time as another message, and from the same person.

The command was intended to be run under cron. If run in a terminal, mutt can be used:

mutt -e "push otD~=xq" -f $folder

Removes all *.swp files underneath the current directory. Replace "*.swp" with your file pattern(s).

Will check if the given module is installed in the @INC. It will print the path and return 0 if found, or 1 otherwise.

Based on script from SharpyWarpy in http://www.linuxquestions.org/questions/linux-general-1/how-to-list-all-installed-perl-modules-216603/