shell [ find / grep 的基本使用 ]

find . -newer han2.sh -print | wc -lfind . -newer han2.sh -type f -print | wc -lfind . \( -name "*1*" -or -newer eval.sh \) -type f -print

grep 的初步使用    grep 是 通用正则表达式解析器

grep in words.txt

in there inthi I am goodTom cintheschool fowloer

hp@ubuntu:~/shel$ grep -c in words.txt2hp@ubuntu:~/shel$ grep -v in words.txthello world!hp@ubuntu:~/shel$ grep -cv in words.txt1hp@ubuntu:~/shel$ more words.txthello world!in there inthi I am goodTom cintheschool fowloer

hp@ubuntu:~/shel$ 

grep e$ words2.txtgrep a[[:blank:]] words2.txtgrep Th.[[:space:]] words2.txtgrep -E [a-z]\{10\} words2.txt