bash – grep匹配精确的子串忽略正则表达式语法

参见英文答案 > Grep for literal strings5个
有没有办法让grep匹配一个精确的字符串,而不是将其解析为正则表达式？或者是否有一些工具可以正确地为grep转义字符串？

$version=10.4
$echo "10.4" | grep $version
10.4
$echo "1034" | grep $version # shouldn't match
1034

使用grep -F或fgrep.

$echo "1034" | grep -F $version # shouldn't match
$echo "10.4" | grep -F $version
10.4

见手册页：

06001

我一直在寻找术语“文字匹配”或“固定字符串”.

(另见Using grep with a complex string和How can grep interpret literally a string that contains an asterisk and is fed to grep through a variable?)