文件查找——搜索当前目录下的文件
知道大概的文件名称，使用
findf FileName
findf.py
import argparse, re, os
from os.path import join parser = argparse.ArgumentParser()
parser.add_argument('FILENAME', help='file name use regular expression')
parser.add_argument('-e', metavar='EXCLUDE', default=None, help='exclude file name use regular expression') args = parser.parse_args() count = 0
for root, dirs, files in os.walk(os.getcwd()):
for name in files:
if not re.search(args.FILENAME, name):
continue
if args.e and re.search(args.e, name):
continue
count += 1
print(join(root, name))
if count <= 1:
print('\t %d file found.' % (count))
else:
print('\t %d files found.' % (count))
对应在 windows 下可以使用这样的命令：
dir /b /s FileName
在 linux 下可以使用这样的命令：
find . -name FileName -print
字符串查找——在当前目录及子目录中搜索文件包含的字符串
比如，看看哪些 java 文件中包含了 "Hello" 字符串
finds .java Hello
finds.py
import os, re, argparse
from os.path import join parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CODING', default='utf-8', help='coding: gbk, utf-8')
parser.add_argument('EXT', help='.java, .txt')
parser.add_argument('REGEX', help='regular expression') args = parser.parse_args() for root, dirs, files in os.walk(os.getcwd()):
for name in files:
if name[-len(args.EXT):] != args.EXT:
continue
count = 0
inFile = False
for line in open(join(root, name), encoding=args.c).readlines():
count += 1
if re.search(args.REGEX, line):
print(count, '\t', line, end='')
inFile = True
if inFile:
print(join(root,name))
对应在 windows 下的命令：
findstr /s /c:"Hello" *.java
在 linux 下：
find . -name '*.java' -exec grep 'Hello' \{} \; -print
jar 包查找——查找一个类所在的 jar 包
有时候，需要使用一个类，但不知道它在哪个 jar 包中。
findj ClassName
findj.py
import os, re, sys
from os.path import join
from zipfile import ZipFile def find_in_all_jars(matchstr, path):
for root, dirs, files in os.walk(path):
for name in files:
if name[-4:] == '.jar' and handle_jar(matchstr, join(root, name)):
print(join(root, name)) def handle_jar(matchstr, filename):
isMatch = False
with ZipFile(filename) as zipfile:
for name in zipfile.namelist():
if re.search(matchstr, name):
print('\t', name)
isMatch = True
return isMatch if len(sys.argv) != 2:
print('''Usage: findj ClassName.class''')
sys.exit() #find_in_all_jars(sys.argv[1], os.getcwd()) # 在当前目录及子目录中所有 jar 包中查
find_in_all_jars(sys.argv[1], 'e:\\data\\repository')
对应的 windows 命令：
for /r %i in (*.jar) do @jar tf %i | find "FastDateFormat" && echo %i
for /r %i in (*.jar) do @jar tf %i | find "FastDateFormat" & echo %i
Linux 命令
find . -name '*.jar' -exec jar tvf \{} \| grep Hello \; -print
字数统计——统计当前目录下的代码
统计当前目录下对应文件的字数，单词数，行数
pwc .java
pwc.py
import os, re, argparse
from os.path import join parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CODING', default='utf-8', help='coding: gbk, utf-8')
parser.add_argument('-d', action='store_true', default=False, help='print detail')
parser.add_argument('EXT', help='.java, .txt') args = parser.parse_args() nf = nl = nw = nc = 0 for root, dirs, files in os.walk(os.getcwd()):
for name in files:
if name[-len(args.EXT):] != args.EXT:
continue
nf += 1
nnl = nnc = nnw = 0
try:
for line in open(join(root, name), encoding=args.c).readlines():
nnl += 1
nnc += len(line)
nnw += len(line.split())
except:
print('Passing file error: ' + join(root, name))
nl += nnl
nc += nnc
nw += nnw
if args.d:
print("%12d%10d%8d %s" % (nnc, nnw, nnl, join(root, name))) print("%12d%10d%8d%10d Files" % (nc, nw, nl, nf))