df -hl 查看磁碟剩餘空間 du -sm 檔案夾 返回該檔案夾總M數 更多功能查看： df --help即df的man手冊 用法：du [選項]... [檔案]... 總結每個檔案的磁碟用量，目錄則取總用量。 長選項必須用的參數在使用短選項時也是必須的。
- df -hl 查看磁碟剩餘空間
- du -sm 檔案夾
- 返回該檔案夾總M數
- 更多功能查看：
- df --help
- du --help
- du --help
- 用法：du [選項]... [檔案]...
- 總結每個<檔案>的磁碟用量，目錄則取總用量。
- 長選項必須用的參數在使用短選項時也是必須的。
- -a, --all write counts for all files, not just directories
- --apparent-size print apparent sizes, rather than disk usage; although
- the apparent size is usually smaller, it may be
- larger due to holes in (`sparse') files, internal
- fragmentation, indirect blocks, and the like
- -B, --block-size=SIZE use SIZE-byte blocks
- -b, --bytes equivalent to `--apparent-size --block-size=1'
- -c, --total produce a grand total
- -D, --dereference-args dereference FILEs that are symbolic links
- -H like --si, but also evokes a warning; will soon
- change to be equivalent to --dereference-args (-D)
- -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G)
- --si like -h, but use powers of 1000 not 1024
- -k like --block-size=1K
- -l, --count-links count sizes many times if hard linked
- -L, --dereference dereference all symbolic links
- -P, --no-dereference don't follow any symbolic links (this is the default)
- -0, --null end each output line with 0 byte rather than newline
- -S, --separate-dirs do not include size of subdirectories
- -s, --summarize display only a total for each argument
- -x, --one-file-system skip directories on different filesystems
- -X FILE, --exclude-from=FILE Exclude files that match any pattern in FILE.
- --exclude=PATTERN Exclude files that match PATTERN.
- --max-depth=N print the total for a directory (or file, with --all)
- only if it is N or fewer levels below the command
- line argument; --max-depth=0 is the same as
- --summarize
- --help 顯示此協助資訊並離開
- --version 顯示版本資訊並離開
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