如果在python / bash中包含另一个.txt文件中的单词,则从文件中删除行

时间:2014-02-23 16:26:18

标签: python bash csv lines

我正在学习python,然后我遇到以下困难。 我想要清理的文件是.csv文件。 包含必须从.csv文件中删除的单词的文件是.txt .txt文件是域名列表:

domain.com
domain2.com
domain3.com

.csv文件是一个配置文件,如下所示:

domain.com;8;Started;C:\inetpub\wwwroot\d\domain.com;"http *:80:www.domain.com"

如果.txt文件包含" domain.com"我希望删除上面的完整行。 如果一些python忍者可以解决这个问题,我会非常感激。(或者在bash中?)

4 个答案:

答案 0 :(得分:2)

这样就够了吗?

import sys

def main():
    with open(sys.argv[1]) as fh:
        fhDomains = fh.read().split(";")
    with open(sys.argv[2]) as fh:
        fhExcludes = fh.read().split("\n")

    for i, dom in enumerate(fhDomains):
        if dom in fhExcludes:
            del fhDomains[i]

    fh = open(sys.argv[1], "w")
    fh.write(";".join(fhDomains))





if __name__ == "__main__":
    main()

执行:

  

script.py Domains.txt excludes.txt

答案 1 :(得分:2)

尝试:

grep -vf <(sed 's/.*/^&;/' domains.txt) file.csv

@glenn jackman的建议 - 更短。

grep -wFvf domains.txt file.csv

但是,域名中的foo.com将匹配两行(一个不需要的行),例如:

foo.com;.....
other.foo.com;.....

...洙

我的domains.txt

dom1.com
dom3.com

我的file.csv(只需要第一列)

dom1.com;wedwedwe
dom2.com;wedwedwe 2222
dom3.com;wedwedwe 333
dom4.com;wedwedwe 444444

结果:

dom2.com;wedwedwe 2222
dom4.com;wedwedwe 444444

如果您有Windows文件 - 这些行不仅以\r\n结尾\n,请使用:

grep -vf <(<domains.txt tr -d '\r' |sed -e 's/.*/^&;/') file.csv

答案 2 :(得分:2)

好吧,因为OP正在学习python ......

$ python SCRIPT.py

TXT_file = 'TXT.txt'
CSV_file = 'CSV.csv'
OUT_file = 'OUTPUT.csv'

## From the TXT, create a list of domains you do not want to include in output
with open(TXT_file, 'r') as txt:
    domain_to_be_removed_list = []

    ## for each domain in the TXT
    ## remove the return character at the end of line
    ## and add the domain to list domains-to-be-removed list
    for domain in txt:
        domain = domain.rstrip()
        domain_to_be_removed_list.append(domain)


with open(OUT_file, 'w') as outfile:
    with open(CSV_file, 'r') as csv:

        ## for each line in csv
        ## extract the csv domain
        for line in csv:
            csv_domain = line.split(';')[0]

            ## if csv domain is not in domains-to-be-removed list,
            ## then write that to outfile
            if (not csv_domain in domain_to_be_removed_list):
                outfile.write(line)

答案 3 :(得分:0)

这个awk单行应该可以解决问题:

awk -F';' 'NR == FNR {a[$1]++; next} !($1 in a)' txtfile csvfile