如何递归地计数Linux目录中的文件?
我发现了这个:
find DIR_NAME -type f ¦ wc -l
但是当我运行它时，它返回以下错误。
查找:路径必须在表达式之前:
当前回答
对于名称中有空格的目录…(基于上面的各种答案)—递归打印目录名称和文件数量:
find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done
示例(为便于阅读而格式化):
pwd
/mnt/Vancouver/Programming/scripts/claws/corpus
ls -l
total 8
drwxr-xr-x 2 victoria victoria 4096 Mar 28 15:02 'Catabolism - Autophagy; Phagosomes; Mitophagy'
drwxr-xr-x 3 victoria victoria 4096 Mar 29 16:04 'Catabolism - Lysosomes'
ls 'Catabolism - Autophagy; Phagosomes; Mitophagy'/ | wc -l
138
## 2 dir (one with 28 files; other with 1 file):
ls 'Catabolism - Lysosomes'/ | wc -l
29
使用tree可以更好地可视化目录结构:
tree -L 3 -F .
.
├── Catabolism - Autophagy; Phagosomes; Mitophagy/
│ ├── 1
│ ├── 10
│ ├── [ ... SNIP! (138 files, total) ... ]
│ ├── 98
│ └── 99
└── Catabolism - Lysosomes/
├── 1
├── 10
├── [ ... SNIP! (28 files, total) ... ]
├── 8
├── 9
└── aaa/
└── bbb
3 directories, 167 files
man find | grep mindep
-mindepth levels
Do not apply any tests or actions at levels less than levels
(a non-negative integer). -mindepth 1 means process all files
except the starting-points.
Ls -p | grep -v /(下面使用)来自https://unix.stackexchange.com/questions/48492/list-only-regular-files-but-not-directories-in-current-directory的答案2
find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done
./Catabolism - Autophagy; Phagosomes; Mitophagy: 138
./Catabolism - Lysosomes: 28
./Catabolism - Lysosomes/aaa: 1
应用程序:我想找到几百个目录中的最大文件数量(所有深度= 1)[下面的输出再次格式化的可读性]:
date; pwd
Fri Mar 29 20:08:08 PDT 2019
/home/victoria/Mail/2_RESEARCH - NEWS
time find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done > ../../aaa
0:00.03
[victoria@victoria 2_RESEARCH - NEWS]$ head -n5 ../../aaa
./RNA - Exosomes: 26
./Cellular Signaling - Receptors: 213
./Catabolism - Autophagy; Phagosomes; Mitophagy: 138
./Stress - Physiological, Cellular - General: 261
./Ancient DNA; Ancient Protein: 34
[victoria@victoria 2_RESEARCH - NEWS]$ sed -r 's/(^.*): ([0-9]{1,8}$)/\2: \1/g' ../../aaa | sort -V | (head; echo ''; tail)
0: ./Genomics - Gene Drive
1: ./Causality; Causal Relationships
1: ./Cloning
1: ./GenMAPP 2
1: ./Pathway Interaction Database
1: ./Wasps
2: ./Cellular Signaling - Ras-MAPK Pathway
2: ./Cell Death - Ferroptosis
2: ./Diet - Apples
2: ./Environment - Waste Management
988: ./Genomics - PPM (Personalized & Precision Medicine)
1113: ./Microbes - Pathogens, Parasites
1418: ./Health - Female
1420: ./Immunity, Inflammation - General
1522: ./Science, Research - Miscellaneous
1797: ./Genomics
1910: ./Neuroscience, Neurobiology
2740: ./Genomics - Functional
3943: ./Cancer
4375: ./Health - Disease
sort -V是一个自然排序. ...所以，我在这些(claw Mail)目录中的最大文件数量是4375个文件。如果我在每个目录中留下(https://stackoverflow.com/a/55409116/1904943)这些文件名——它们都是以数字命名的，从1开始——并填充到总共5个数字，应该没问题。
齿顶高
查找文件总数，子目录在一个目录。
$ date; pwd
Tue 14 May 2019 04:08:31 PM PDT
/home/victoria/Mail/2_RESEARCH - NEWS
$ ls | head; echo; ls | tail
Acoustics
Ageing
Ageing - Calorie (Dietary) Restriction
Ageing - Senescence
Agriculture, Aquaculture, Fisheries
Ancient DNA; Ancient Protein
Anthropology, Archaeology
Ants
Archaeology
ARO-Relevant Literature, News
Transcriptome - CAGE
Transcriptome - FISSEQ
Transcriptome - RNA-seq
Translational Science, Medicine
Transposons
USACEHR-Relevant Literature
Vaccines
Vision, Eyes, Sight
Wasps
Women in Science, Medicine
$ find . -type f | wc -l
70214 ## files
$ find . -type d | wc -l
417 ## subdirectories
其他回答
我编写了ffcnt来加快特定情况下的递归文件计数:支持区段映射的旋转磁盘和文件系统。
它可能比ls或基于find的方法快一个数量级，但是YMMV。
这应该可以工作:
find DIR_NAME -type f | wc -l
解释:
-type f只包括文件。 |(而不是……)将find命令的标准输出重定向到wc命令的标准输入。 Wc (word count的缩写)对输入(docs)的换行、单词和字节进行计数。 -l只计算换行。
注:
将DIR_NAME替换为。执行当前文件夹中的命令。 您还可以删除类型f以在计数中包括目录(和符号链接)。 如果文件名可以包含换行符，这个命令可能会被高估。
解释为什么你的例子不起作用:
在您所显示的命令中，您没有使用“Pipe”(|)来连接两个命令，而是使用了shell不将其识别为命令或类似内容的断线(δ)。这就是为什么你会得到错误消息。
对于名称中有空格的目录…(基于上面的各种答案)—递归打印目录名称和文件数量:
find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done
示例(为便于阅读而格式化):
pwd
/mnt/Vancouver/Programming/scripts/claws/corpus
ls -l
total 8
drwxr-xr-x 2 victoria victoria 4096 Mar 28 15:02 'Catabolism - Autophagy; Phagosomes; Mitophagy'
drwxr-xr-x 3 victoria victoria 4096 Mar 29 16:04 'Catabolism - Lysosomes'
ls 'Catabolism - Autophagy; Phagosomes; Mitophagy'/ | wc -l
138
## 2 dir (one with 28 files; other with 1 file):
ls 'Catabolism - Lysosomes'/ | wc -l
29
使用tree可以更好地可视化目录结构:
tree -L 3 -F .
.
├── Catabolism - Autophagy; Phagosomes; Mitophagy/
│ ├── 1
│ ├── 10
│ ├── [ ... SNIP! (138 files, total) ... ]
│ ├── 98
│ └── 99
└── Catabolism - Lysosomes/
├── 1
├── 10
├── [ ... SNIP! (28 files, total) ... ]
├── 8
├── 9
└── aaa/
└── bbb
3 directories, 167 files
man find | grep mindep
-mindepth levels
Do not apply any tests or actions at levels less than levels
(a non-negative integer). -mindepth 1 means process all files
except the starting-points.
Ls -p | grep -v /(下面使用)来自https://unix.stackexchange.com/questions/48492/list-only-regular-files-but-not-directories-in-current-directory的答案2
find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done
./Catabolism - Autophagy; Phagosomes; Mitophagy: 138
./Catabolism - Lysosomes: 28
./Catabolism - Lysosomes/aaa: 1
应用程序:我想找到几百个目录中的最大文件数量(所有深度= 1)[下面的输出再次格式化的可读性]:
date; pwd
Fri Mar 29 20:08:08 PDT 2019
/home/victoria/Mail/2_RESEARCH - NEWS
time find . -mindepth 1 -type d -print0 | while IFS= read -r -d '' i ; do echo -n $i": " ; ls -p "$i" | grep -v / | wc -l ; done > ../../aaa
0:00.03
[victoria@victoria 2_RESEARCH - NEWS]$ head -n5 ../../aaa
./RNA - Exosomes: 26
./Cellular Signaling - Receptors: 213
./Catabolism - Autophagy; Phagosomes; Mitophagy: 138
./Stress - Physiological, Cellular - General: 261
./Ancient DNA; Ancient Protein: 34
[victoria@victoria 2_RESEARCH - NEWS]$ sed -r 's/(^.*): ([0-9]{1,8}$)/\2: \1/g' ../../aaa | sort -V | (head; echo ''; tail)
0: ./Genomics - Gene Drive
1: ./Causality; Causal Relationships
1: ./Cloning
1: ./GenMAPP 2
1: ./Pathway Interaction Database
1: ./Wasps
2: ./Cellular Signaling - Ras-MAPK Pathway
2: ./Cell Death - Ferroptosis
2: ./Diet - Apples
2: ./Environment - Waste Management
988: ./Genomics - PPM (Personalized & Precision Medicine)
1113: ./Microbes - Pathogens, Parasites
1418: ./Health - Female
1420: ./Immunity, Inflammation - General
1522: ./Science, Research - Miscellaneous
1797: ./Genomics
1910: ./Neuroscience, Neurobiology
2740: ./Genomics - Functional
3943: ./Cancer
4375: ./Health - Disease
sort -V是一个自然排序. ...所以，我在这些(claw Mail)目录中的最大文件数量是4375个文件。如果我在每个目录中留下(https://stackoverflow.com/a/55409116/1904943)这些文件名——它们都是以数字命名的，从1开始——并填充到总共5个数字，应该没问题。
齿顶高
查找文件总数，子目录在一个目录。
$ date; pwd
Tue 14 May 2019 04:08:31 PM PDT
/home/victoria/Mail/2_RESEARCH - NEWS
$ ls | head; echo; ls | tail
Acoustics
Ageing
Ageing - Calorie (Dietary) Restriction
Ageing - Senescence
Agriculture, Aquaculture, Fisheries
Ancient DNA; Ancient Protein
Anthropology, Archaeology
Ants
Archaeology
ARO-Relevant Literature, News
Transcriptome - CAGE
Transcriptome - FISSEQ
Transcriptome - RNA-seq
Translational Science, Medicine
Transposons
USACEHR-Relevant Literature
Vaccines
Vision, Eyes, Sight
Wasps
Women in Science, Medicine
$ find . -type f | wc -l
70214 ## files
$ find . -type d | wc -l
417 ## subdirectories
要确定当前目录中有多少文件，输入ls -1 | wc -l。这使用wc对ls -1输出中的行数(-l)进行计数。它不计算dotfiles。请注意，我在以前版本的HOWTO中使用的ls -l(这是一个“L”而不是前面例子中的“1”)实际上会给你一个比实际计数大1的文件计数。这一点要感谢内贾德。
如果你想只计算文件而不包括符号链接(这只是一个你可以做的其他事情的例子)，你可以使用ls -l | grep -v ^l | wc -l(这是一个“l”而不是“1”，我们想要一个“长”列表)。Grep检查以“l”开头的任何行(表示链接)，并丢弃该行(-v)。
相对速度:“ls -1 /usr/bin/ | wc -l”在未加载的486SX25上大约需要1.03秒(在此机器上/usr/bin/有355个文件)。“ls -l /usr/bin/ | grep -v ^l | wc -l”大约耗时1.19秒。
来源:http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/x700.html
如果你想知道当前目录下每个目录下有多少文件:
for i in */ .*/ ; do
echo -n $i": " ;
(find "$i" -type f | wc -l) ;
done
当然，这些都可以写在一行上。括号说明wc -l应该监视谁的输出(在本例中查找$i -type f)。
