bash - How do I truncate the last two characters of all files in a directory? -

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• bash script remove 'x' amount of characters end of multiple filenames in directory? 3 answers

so pretty simple question. of files in directory of form 6bfefb348d746eca288c6d62f6ebec04_0.jpg. want them 6bfefb348d746eca288c6d62f6ebec04.jpg. essentially, want take off _0 @ end of every file name. how go doing bash?

with perl's standalone rename command:

rename -n 's/..(\....)$/$1/' * 

if looks fine, remove -n.

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it possible use standalone rename command syntax similar sed's s/regexp/replacement/ command. in regex . matches 1 character. \. matches . , $ matches end of line (here end of filename). ( , ) special characters in regex mark subexpression (here 1 . , 3 characters @ end of filename) can reused $1. sed uses \1 first back-reference, rename uses $1.

see: back-references , subexpressions sed