![]() Open Automator and create a new workflow file (press Command-N or choose New from the File menu). for each input from ls, this sed command will generate 2 output, which will then supplied to mv.Great tip, set this up once, and use it forever! -n2: indicates that there are 2 outputs that need to be passed on to mv as parameters._.* : the underscore is an escape character to refer to the actual '.' character zero or more times (as opposed to ANY character in regex).That is, instead of using sed s/search/replace/g, use is a replacement of / character to make sed more readable.p: to print the input to sed, in this case it will be the original file name before any renaming. ![]() *to do a dry-run first, replace mv at the end with echo You could use sed: ls * | sed -e ' | xargs -n2 mv Remove the 'n' parameter to apply the changes. To rename files, you can use the rename utility:įor example, to change a search string in all filenames in current directory: rename -nvs searchword replaceword * The purpose of special argument -, which is supported by most utilities, is to signal that subsequent arguments should be treated as operands (values), even if they look like options due to starting with -, as Jacob C. Similar to the bash solution, s/././ performs text substitution, but - unlike in bash - true regular expressions are used.Here's the equivalent of the command at the top using rename: rename -n -e 's/_.*_/_/' *.pngĪgain, this command performs a dry run remove -n to perform actual renaming. On macOS you can install it using popular package manager Homebrew as follows: brew install rename ![]() If you find yourself batch-renaming files frequently, consider installing a specialized tool such as the Perl-based rename utility. ![]()
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