Examples of printing the number of lines in a file, printing the number of characters in a file and printing the number of words in a file. Tutorial on using wc, a UNIX and Linux command for printing newline, word and byte counts for files. Linux and Unix wc command tutorial with examples I switched to Vim for editing text about 18 months ago. Examples of alphabetical sorting, reverse order sorting, sorting by number and mixed case sorting. Tutorial on using sort, a UNIX and Linux command for sorting lines of text files. Linux and Unix sort command tutorial with examples You can edit it here and send me a pull request. The + is greater than and 2 GB is specified as 2G in the syntax. The -size option tells find to search for files of a certain size. Let’s find files that are more than 2 GB in file size. Some examples of using UNIX find command The find command is an even better way to list files based on their size.Find Command in Unix and Linux Examples.A collection of Unix/Linux find command examples.type f -name "*.md" -exec grep 'foo' \ Further reading ¶ does not work on linux and openbsd, only macOS.Find. If you want to match only directories or symbolic links to directories, add a trailing / (i.e. In ksh93, you need to run set -o globstar first. In bash, you need to run shopt -s globstar first, and beware that this also traverses symbolic links to directories. ( basename takes only 1 path argument but xargs will send them all (actually 5000) without -n1. echo /target or to get one match per line: printf sn /target This works out of the box in zsh. 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. 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.
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