Golang change file name download

Consider a Go program that is run each day, and outputs a report. We want to place its output in a file name that contains the current day. With time. Now, we can get the current time. And we can convert this to a string with the Format func. We can even provide a pattern to specify delimiter chars. An example. Consider this Go example program. For example, if I have a file or directory "Example", I would want to change "Exa" to "Stq," then the word would be "Stqmple".

Rename will work fine on directories, including windows. The only bit to question here is whether the operation is atomic, which on all major platforms the answer is yes. If you want to locate files and directories that match a pattern, you'll want to look at the filepath package.

This will let you traverse a directory at which point you can inspect each file and match the name against your requirements. Look at func Walk and type WalkFn of the documentation. Here's an example of using Walk to locate png files in a given directory or any of its subdirectories:.

Here's a func visit that does what your asking about in the comment, be sure to import "strings":. First I think that os. Rename also renames directories which - at least under Unix - are files too. Second: Maybe you could use strings.

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Learn more. Rename the directory and partial file renaming Ask Question. Asked 8 years ago. Active 1 year, 4 months ago. Viewed 10k times. Change the name of directory not files For example, if I have a file or directory "Example", I would want to change "Exa" to "Stq," then the word would be "Stqmple" What package should I use?

Thanks in advance. For tar and zip files, I find it more useful to simply use the wget command, especially since I can pair it with the tar -xzvf commands. However, there is more community involvement going on at present to develop a more robust, concurrent download package.

Skip to content. Parse fullURLFile if err! Create fileName if err! Get fullURLFile if err! Copy file, resp. Body defer file. Close fmt.