git学习------>git-rev-parse命令初识
一、准备工作
第一步:在d盘git test目录下,新建工作区根目录demo,进入该目录后,执行git init创建版本库。
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test$ mkdir demo DH207891+OuyangPeng@DH207891 MINGW32 /d/git test $ cd demo/ DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo $ git init Initialized empty Git repository in D:/git test/demo/.git/
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第二步:在工作区中创建一个welcom.txt文件,内容就是“hello .”,然后将该文件加入到git版本库中。
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master)$ echo "hello ." > welcome.txt DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ ll total 1 -rw-r--r-- 1 DH207891+OuyangPeng 197609 8 6月 13 08:45 welcome.txt DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ git add welcome.txt warning: LF will be replaced by CRLF in welcome.txt. The file will have its original line endings in your working directory. DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ git st On branch master Initial commit Changes to be committed: (use "git rm --cached..." to unstage) new file: welcome.txt DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ git ci -m "Initialized" [master (root-commit) 89c9fa6] Initialized 1 file changed, 1 insertion(+) create mode 100644 welcome.txt DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ git log commit 89c9fa626e7d56c686e904ba34b8e21e9aaf43d8 Author: ouyangpeng Date: Tue Jun 13 08:46:17 2017 +0800 Initialized
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第三步:在工作区中建立目录 a/b/c,进入到该目录中。
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master)$ mkdir -p a/b/c DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo (master) $ cd a/b/c/ DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master) $ pwd /d/git test/demo/a/b/c
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二、 git rev-parse 命令
git rev-parse –git-dir
显示版本库.git命令所在的位置,执行命令 git rev-parse --git-dir
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --git-dir D:/git test/demo/.git
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git rev-parse –show-toplevel
显示工作区根目录,执行命令 git rev-parse --show-toplevel
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --show-toplevel D:/git test/demo
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git rev-parse –show-prefix
显示相对于工作区根目录的相对路径,执行命令 git rev-parse --show-prefix
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --show-prefixa/b/c/
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git rev-parse –show-cdup
显示从当前目录(cd)后退(up)到工作区的根目录的深度,执行命令 git rev-parse --show-cdup
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --show-cdup ../../../
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git rev-parse –local-env-vars
显示git环境变量列表的本地库,只列出变量的名称,而不是它们的值。执行命令git rev-parse --local-env-vars
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --local-env-vars GIT_ALTERNATE_OBJECT_DIRECTORIES GIT_CONFIG GIT_CONFIG_PARAMETERS GIT_OBJECT_DIRECTORY GIT_DIR GIT_WORK_TREE GIT_IMPLICIT_WORK_TREE GIT_GRAFT_FILE GIT_INDEX_FILE GIT_NO_REPLACE_OBJECTS GIT_REPLACE_REF_BASE GIT_PREFIX GIT_INTERNAL_SUPER_PREFIX GIT_SHALLOW_FILE GIT_COMMON_DIR
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git rev-parse –git-common-dir
如果GIT_COMMON_DIR变量定义了则展示GIT_COMMON_DIR变量的值,不然则展示GIT_DIR变量的值
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git rev-parse --git-common-dira/b/c/.git
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git rev-parse –symbolic –branches
显示分支,执行命令 git rev-parse --symbolic --branches
目前只有master一个分支,所以只显示master。
git rev-parse –symbolic –tags
显示里程碑,执行命令 git rev-parse --symbolic --tags
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master) $ git rev-parse --symbolic --tags
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目前还未建立TAG,所以没有值显示。
git rev-parse HEAD
显示HEAD提交的SHA1值,执行命令git rev-parse HEAD
,如下所示,先执行git log
命令查看提交记录,再执行命令git rev-parse HEAD
DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master)$ git log commit 89c9fa626e7d56c686e904ba34b8e21e9aaf43d8 Author: ouyangpengDate: Tue Jun 13 08:46:17 2017 +0800 Initialized DH207891+OuyangPeng@DH207891 MINGW32 /d/git test/demo/a/b/c (master) $ git rev-parse HEAD 89c9fa626e7d56c686e904ba34b8e21e9aaf43d8
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git rev-parse –help
git rev-parse命令还有很多种用法,大家可以使用git rev-parse --help
命令打开帮助文档,