戯術者の日記

% grep -c String *.cpp

% grep -wc String *.cpp | sort -nt ':' +1

$ grep -m N pattern

$ find ~/Maildir -type f | xargs grep -m 1 '^From: ' | sed 's/.*From: \(.*\)/\1/' | sort | uniq

$ grep -C X pattern file
もしくは
$ grep -X pattern file

$ grep -nX pattern file
マッチ行前後-
マッチ行:
マッチ行前後-

hmiyazaki@chaource:~/tmp$ cat test.grep 
#!/usr/bin/grep -ve #
hoge
foo
bar
hoge
hmiyazaki@chaource:~/tmp$ ./test.grep 
hoge
foo
bar
hoge

$ grep -L pattern *

$ grep -l pattern *

$ find . -type f | xargs grep -l pattern | xargs rm

grep -h ^Subject ~/Maildir/cur/* | nkf -me

$ grep -A X pattern file
$ grep -B X pattern file

grep -n 'pattern' file