Question

我正在尝试使用Shell脚本从一个文件中获取字符串，然后使用它来获取匹配的句子。

脚本如下：

function find_str (){
    echo $1
    grep -e "\/$1" info.txt
}

for word in $(<./name.TXT); do
   #egrep -w "$word" info.txt  #this can't work either
   find_str $word
done

事实证明，find_str $word无法匹配诸如// WORD1 balabala之类的字符串

对这段简短的脚本有何建议？

Answer 1

“ / $ 1”部分是什么？您是否在寻找斜线？而您需要该功能吗？

$ cat > info.txt
testing 123 dog
nothing matches a catalyst
doggerel is not poetry
my cat is a maine coone

$ cat > name.txt
dog cat

使用-w和gnu grep时，仅列出具有匹配的整个单词的行：

$ for word in $(<name.txt); do grep -w "$word" info.txt; done
testing 123 dog
my cat is a maine coone

没有-w标志，则列出所有包含匹配项的行：

$ for word in $(<name.txt); do grep "$word" info.txt; done
testing 123 dog
doggerel is not poetry
nothing matches a catalyst
my cat is a maine coone

变量不能用于grep模式匹配

1 个答案: