List files with certain extensions with ls and grep

Question

I just want to get the files from the current dir and only output  mp4  mp3  exe files nothing else  So I thought I could just do this   ls   grep   mp4    grep   mp3    grep   exe    But no  as the first grep will output just mp4 s therefor the other 2 grep s won t be used   Any ideas  PS  Running this script on Slow Leopard

User · Answer

Just in case  why don t you use find   find -iname    mp3  -o -iname    exe  -o -iname    mp4

User · Answer

Here is one example that worked for me   find  lt mainfolder path gt  -name   myfiles java    xargs -n 1 basename

User · Answer

Use regular expressions with find   find   -iregex        mp3  mp4  exe    -printf   f n    If you re piping the filenames   find   -iregex        mp3  mp4  exe    -printf   f 0    xargs -0 dosomething   This protects filenames that contain spaces or newlines   OS X find only supports alternation when the -E  enhanced  option is used   find -E   -regex       mp3 mp4 exe

User · Answer

For OSX users   If you use ls    mp3 exe mp4   it will throw an error if one of those extensions has no results   Using ls    mp3 exe mp4  will return all files matching those extensions  even if one of the extensions had 0 results

User · Answer

ls   grep    mp4    mp3    exe

User · Answer

Why not   ls    mp3 exe mp4    I m not sure where I learned it - but I ve been using this

User · Answer

egrep -- extended grep -- will help here  ls   egrep    mp4    mp3    exe     should do the job

User · Answer

ls -R   findstr   mp3   ls -R    lists subdirectories recursively

User · Answer

No need for grep  Shell wildcards will do the trick   ls   mp4   mp3   exe   If you have run  shopt -s nullglob   then unmatched globs will be removed altogether and not be left on the command line unexpanded   If you want case-insensitive globbing  so   mp3 will match foo MP3    shopt -s nocaseglob

User · Answer

In case you are still looking for an alternate solution   ls   grep -i -e     tcl   -e     exe   -e     mp4     Feel free to add more -e flags if needed

User · Answer

it is easy try to use this command   ls   grep   txt   amp  amp  ls   grep   exe

User · Answer

the easiest way is to just use ls  ls   mp4   mp3   exe

[bash] List files with certain extensions with ls and grep

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