conda 安裝的包都在目錄Anaconda/pkgs下。隨著使用，conda 安裝的包也越來(lái)越多；有時(shí)候會(huì)出現(xiàn)以下不好的情況：

• 有些包安裝之后，從來(lái)沒(méi)有使用過(guò)；
• 一些安裝包的tar包也保留在了計(jì)算機(jī)中；
• 由于依賴或者環(huán)境等原因，某些包的不同版本重復(fù)安裝。

上面的這些情況使得anaconda顯得更加冗余，并且浪費(fèi)儲(chǔ)存；對(duì)于這些情況可以使用conda clean 凈化Anaconda。

# 查看conda clean使用參數(shù)

$ conda clean -H
usage: conda clean [-h] [-a] [-i] [-l] [-p] [-t] [-f]
                   [-c TEMPFILES [TEMPFILES ...]] [-d] [--json] [-q] [-v] [-y]

Remove unused packages and caches.

Options:

optional arguments:
  -h, --help            Show this help message and exit.

Removal Targets:
  -a, --all             Remove index cache, lock files, unused cache packages,
                        and tarballs.
  -i, --index-cache     Remove index cache.
  -l, --lock            Remove all conda lock files.
  -p, --packages        Remove unused packages from writable package caches.
                        WARNING: This does not check for packages installed
                        using symlinks back to the package cache.
  -t, --tarballs        Remove cached package tarballs.
  -f, --force-pkgs-dirs
                        Remove *all* writable package caches. This option is
                        not included with the --all flag. WARNING: This will
                        break environments with packages installed using
                        symlinks back to the package cache.
  -c TEMPFILES [TEMPFILES ...], --tempfiles TEMPFILES [TEMPFILES ...]
                        Remove temporary files that could not be deleted
                        earlier due to being in-use. Argument is path(s) to
                        prefix(es) where files should be found and removed.

Output, Prompt, and Flow Control Options:
  -d, --dry-run         Only display what would have been done.
  --json                Report all output as json. Suitable for using conda
                        programmatically.
  -q, --quiet           Do not display progress bar.
  -v, --verbose         Can be used multiple times. Once for INFO, twice for
                        DEBUG, three times for TRACE.
  -y, --yes             Do not ask for confirmation.

Examples:

    conda clean --tarballs

# conda clean使用
## 刪除從不使用的包

$ conda clean --packages

## 刪除tar包

$ conda clean --tarballs

## 刪除索引緩存、鎖定文件、未使用過(guò)的包和tar包。

$ conda clean -a 

參考：
conda clean