I have a set of images like these
12345-image-1-medium.jpg 12345-image-2-medium.png 12345-image-3-large.jpg
what pattern should I write to select these images and delete them
I also have these images that don't want to select
12345-image-profile-small.jpg 12345-image-profile-medium.jpg 12345-image-profile-large.png
I have tried this regex but not worked
1234-image-[0-9]+-small.*
I think bash not support regex as in Javascript, Go, Python or Java
Ok I solve it with this pattern
12345-image-*[0-9]-*
eg:
rm -rf 12345-image-*[0-9]-*
it matches all the file names start with 12345-image- then a number then - symbol and any thing after that
as I found it's globbing in bash not regex
and I found this app really use full
12345. From your comment of "I have just tested this regex 1234-image-..." you indicated that the number of digits was not fixed at five -- it this a requirement?.
for pic in 12345*.{jpg,png};do rm $pic;done
for more information on wildcards take a look here
So long as you do NOT have filenames with embedded '\n' character, then the following find and grep will do:
find . -type f | grep '^.*/[[:digit:]]\{1,5\}-image-[[:digit:]]\{1,5\}'
It will find all files below the current directory and match (1 to 5 digits) followed by "-image-" followed by another (1 to 5 digits). In your case with the following files:
$ ls -1
123-image-99999-small.jpg
12345-image-1-medium.jpg
12345-image-2-medium.png
12345-image-3-large.jpg
12345-image-profile-large.png
12345-image-profile-medium.jpg
12345-image-profile-small.jpg
The files you request are matched in addition to 123-image-99999-small.jpg, e.g.
$ find . -type f | grep '^.*/[[:digit:]]\{1,5\}-image-[[:digit:]]\{1,5\}'
./123-image-99999-small.jpg
./12345-image-3-large.jpg
./12345-image-2-medium.png
./12345-image-1-medium.jpg
You can use the above in a command substitution to remove the files, e.g.
$ rm $(find . -type f | grep '^.*/[[:digit:]]\{1,5\}-image-[[:digit:]]\{1,5\}')
The remaining files are:
$ l1
12345-image-profile-large.png
12345-image-profile-medium.jpg
12345-image-profile-small.jpg
If Your find Supports -regextype
If your find supports the regextype allowing you to specify which set of regular expression syntax to use, you can use -regextype grep for grep syntax and use something similar to the above to remove the files with the -execdir option, e.g.
$ find . -type f -regextype grep -regex '^.*/[[:digit:]]\+-image-[[:digit:]]\+.*$' -execdir rm '{}' +
I do not know whether this is supported by BSD or Solaris, etc.., so check before turning it loose in a script. Also note, [[:digit:]]\+ tests for (1 or more) digits and is not limited to 5-digits as shown in your question.
ls -al [[:digit:]][[:digit:]][[:digit:]][[:digit:]][[:digit:]]-image-[[:digit:]]*if that matches what you want to delete, thenrm [[:digit:]][[:digit:]][[:digit:]][[:digit:]][[:digit:]]-image-[[:digit:]]*