如何停止搜索单词（regex、grep）？
嗨，我想一到单词的末尾就停止搜索 例如：如何停止搜索单词（regex、grep）？,regex,linux,perl,grep,Regex,Linux,Perl,Grep,嗨，我想一到单词的末尾就停止搜索 例如： ls -al | grep adh grep { -f && /adh\b/ } 那是我的搜索。。。我想在“h”之后停下来 我正在搜索的目录有两个实例adh，分别是adh2和adh。。。我只想要adh而不是adh2 希望这是有意义的，任何问题请问：） F.Y.I 我是Linux/perl初学者 使用$作为行尾： ls -al | grep " adh$" 应该可以 试验 一般而言： command that generates o
ls -al | grep adh
grep { -f && /adh\b/ }
adhadh2adhadhadh2我是Linux/perl初学者 使用
$ls -al | grep " adh$"
command that generates output | grep pattern | head -1
ls -l | grep " adh$" | head -1
ls -al | grep -Fx adh
-F, --fixed-strings
-x, --line-regexp
仅选择与整行完全匹配的匹配项。通常，您应该指定在您的
adhadh$
adh something
adh2 another
grep 'adh '
adhgrep `adh[^a-z0-9A-Z]`
adhperl regexgrep -P `adh\b`
adh等等。。。也许，更熟练的正则表达式专家会建议更多的可能性。
grep-w -w, --word-regexp
Select only those lines containing matches that form whole
words. The test is that the matching substring must either be
at the beginning of the line, or preceded by a non-word
constituent character. Similarly, it must be either at the end
of the line or followed by a non-word constituent character.
Word-constituent characters are letters, digits, and the
underscore.
所以在你的例子中，
grep-wadhlsperlperl -e 'print join "\n", grep { /adh\b/ } glob "*"'
globgrepls -al | grep adh
grep { -f && /adh\b/ }
-fstatjoinadh[something]ls-lls-1grep“^adh$”adhgrep“adh$”ls-al*adhaadhls-ld adh呢回显一些adh2 | grep-F adhadh2adhgrep-F adhadh2固定字符串adhls-lawk'$NF==“adh”{print}grep“adh$”