![]() ![]() does not work on linux and openbsd, only macOS. ( basename takes only 1 path argument but xargs will send them all (actually 5000) without -n1. It gives the correct result and it's the fastest ¯\_(ツ)_/¯ ![]() $ alias f='time find /Applications -name "*.app" -type d -maxdepth 5' \į -print0 | xargs -0 -n1 basename | wc -l \į -print0 | xargs -0 -n1 -P 8 basename | wc -l \Ġm01.17s real 0m00.20s user 0m00.93s systemĠm01.16s real 0m00.20s user 0m00.92s systemĠm01.05s real 0m00.17s user 0m00.85s systemĠm00.93s real 0m00.17s user 0m00.85s systemĠm00.88s real 0m00.12s user 0m00.75s systemįunnily enough i cannot explain the last case of xargs without -n1. exec and -execdir are slow, xargs is king. $ time sh -c 'find /usr/lib -type f -print0 | xargs -0 -n 1 basename | cksum'Īs you can see, it really is substantially faster to avoid launching basename every time. $ time sh -c 'find /usr/lib -type f -print0 | xargs -0 basename -a | cksum' (For sake of a like-with-like comparison, the timings reported here are after an initial dummy run, so that they are both done after the file metadata has already been copied to I/O cache.) I have piped the output to cksum in both cases, just to demonstrate that the output is independent of the method used. ![]() Here is a timing comparison, between the xargs basename -a and xargs -n1 basename versions. Here I've included the -print0 and -0 (which should be used together), in order to cope with any whitespace inside the names of files and directories. If you use the -a option on basename, then it can accept multiple filenames in a single invocation, which means that you can then use xargs without the -n 1, to group the paths together into a far smaller number of invocations of basename, which should be more efficient.Įxample: find /dir1 -type f -print0 | xargs -0 basename -a | xargs -n 1), which may potentially be slow. If you liked this Mommy article on find command, don’t forget to check-out the Daddy article of the find command - Daddy, I found it!, 15 Awesome Linux Find Command Examples (Part2) Awesome Linux Articlesįollowing are few awesome 15 examples articles that you might find helpful.As others have pointed out, you can combine find and basename, but by default the basename program will only operate on one path at a time, so the executable will have to be launched once for each path (using either find. In the example below, the find command calculates the md5sum of all the files with the name M圜Program.c (ignoring case). Executing Commands on the Files Found by the Find Command. By using the ‘-exec’ other Linux commands can be executed on files or folders found. It supports searching by file, folder, name, modification date, owner and permissions. It can be used to find files and directories and perform subsequent operations on them. # find -mindepth 3 -maxdepth 5 -name passwd The find command in Linux is a command line utility for walking a file hierarchy. (i.e root - level 1, and two sub-directories - level 2 and 3 ) # find / -maxdepth 3 -name passwdįind the password file between sub-directory level 2 and 4. (i.e root - level 1, and one sub-directory - level 2) # find -maxdepth 2 -name passwdįind the passwd file under root and two levels down. usr/share/doc/nss_ldap-253/pam.d/passwdįind the passwd file under root and one level down. Limit Search To Specific Directory Level Using mindepth and maxdepthįind the passwd file under all sub-directories starting from root directory. This example finds all files with name - M圜Program.c (ignoring the case) in the current directory and all its sub-directories. This is a basic usage of the find command. This example finds all files with name - M圜Program.c in the current directory and all its sub-directories. MybashProgram.sh mycprogram.c M圜Program.c Program.c 1. # vim create_sample_files.shĬreate_sample_files.sh mycprogram.c Program.c In this article, let us review 15 practical examples of Linux find command that will be very useful to both newbies and experts.įirst, create the following sample empty files under your home directory to try some of the find command examples mentioned below. ![]() Apart from the basic operation of looking for files under a directory structure, you can also perform several practical operations using find command that will make your command line journey easy. ![]()
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