Git：git grepコマンドでマッチした行番号を表示する方法

git grepコマンドでマッチした行番号を表示する方法

git grepコマンドでマッチした行番号を表示するには-nオプションを指定します。

オプションの説明

 -n, --line-number
     Prefix the line number to matching lines.

-nオプションを指定した場合

$ git grep -n time_t | head
Documentation/RelNotes/2.14.0.txt:141: * Some platforms have ulong that is smaller than time_t, and our
Documentation/git-grep.txt:308:`git grep 'time_t' -- '*.[ch]'`::
Documentation/git-grep.txt:309: Looks for `time_t` in all tracked .c and .h files in the working
archive-zip.c:599:      time_t time;
archive-zip.c:605:      time = (time_t)*timestamp;
archive.c:438:  time_t archive_time;
blame.c:187:    time_t now;
builtin/bugreport.c:127:        time_t now = time(NULL);
builtin/pack-objects.c:1164:    time_t last_mtime = 0;
commit-graph.c:2187:    time_t now = time(NULL);

-nオプションを指定しない場合

$ git grep time_t | head
Documentation/RelNotes/2.14.0.txt: * Some platforms have ulong that is smaller than time_t, and our
Documentation/git-grep.txt:`git grep 'time_t' -- '*.[ch]'`::
Documentation/git-grep.txt:     Looks for `time_t` in all tracked .c and .h files in the working
archive-zip.c:  time_t time;
archive-zip.c:  time = (time_t)*timestamp;
archive.c:      time_t archive_time;
blame.c:        time_t now;
builtin/bugreport.c:    time_t now = time(NULL);
builtin/pack-objects.c: time_t last_mtime = 0;
commit-graph.c: time_t now = time(NULL);