![]() ![]() If it looks good, press Up to go back, then erase the -n and press Enter (or replace it with -v to output all changes it makes). This will list all changes it would have made, had you not put the -n flag there. ![]() It shows what would be renamed, then exits without doing it. I suggest using the -n option when you are not positive you have the correct regular expressions. You just have to be careful about special characters (and spaces). )Īctually, you can even enclose the parts of the string in quotes instead of the whole: 's/Search/Replace/g' is the same as s/'Search'/'Replace'/g and s/Search/Replace/g to BASH. (But double-quotes and backslashes are used, for example "\n" for a newline, but since "\." isn't a valid back escape sequence, it translates into. Also very important to note, if you are not familiar with BASH, you must put backslashes in SINGLE quotes! You may not omit quotes or use double quotes, or bash will try to translate them. pdf matches qPDF whereas \.pdf only matches the exact string. Will change Something.pdf into Something.doc. document.pdf renamed to document.pdf_MySuffix.The ^ guarantees it only removes the characters if they are the beginning of the file. Also note, this will work without the ^ character, but would match CD RIP in any part of the filename. Notice the extra space in '^CD RIP ', without the space all files would have a space as the first character of the file. Let's say you had 20 MP3 files named like CD RIP 01 Song.mp3 and you wanted to remove the "CD RIP" part, and you wanted to remove that from all of them with one command. document.pdf renamed to MyPrefix_document.pdfĪlso you can remove unwanted strings.prename used to be installed by default on Ubuntu (along with Perl), but now you may have to do: sudo apt install rename There is another rename which uses patterns, and is not as powerful. Note that this rename is the prename (aka Perl rename) command, which supports complete Perl regular expressions. With regular expressions, you can do lots more. If you want case-insensitive, add /i (that would be, /gi or /ig at the end). If you didn't have /g, it would have only done substitution once, and thus now named REPLACE_SEARCH.jpg. The /g means global, so if you had a SEARCH_SEARCH.jpg, it would be renamed REPLACE_REPLACE.jpg. This will replace the string SEARCH with REPLACE in every file (that is, *). It is pretty simple, but hopefully you know basic regex: rename "s/SEARCH/REPLACE/g" *
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