Command to get latest Git commit hash from a branch

Question

How can I check with the command line the latest commit hash of a particular Git branch?

Have you tried using 'git log -n 1' when you've checked out that specific branch? — Rick van Bodegraven, Mar 28 '13 at 08:46
git log gives local repositories hash , but git hub repository has new hash . — mbdvg, Mar 28 '13 at 08:48
`git log -n 1 [branch_name]` branch_name(may be remote or local branch) is optional. Without branch_name it will show the latest commit of current branch. — Rahul Tapali, Mar 28 '13 at 10:16
See also [here](http://stackoverflow.com/questions/949314/how-to-retrieve-the-hash-for-the-current-commit-in-git). — Raphael, Mar 21 '15 at 12:34

score 195 · Answer 1 · edited Jan 30 '18 at 19:31

195

git log -n 1 [branch_name]

branch_name (may be remote or local branch) is optional. Without branch_name, it will show the latest commit on the current branch.

For example:

git log -n 1
git log -n 1 origin/master
git log -n 1 some_local_branch

git log -n 1 --pretty=format:"%H"  #To get only hash value of commit

edited Jan 30 '18 at 19:31

ndmeiri

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answered Mar 28 '13 at 10:21

Rahul Tapali

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Get short hash: 'git rev-parse --short --verify my_branch' from similar question: http://stackoverflow.com/a/949391/134761 – angularsen Jan 19 '15 at 08:00
Nice, I added this to my .gitconfig so that I can just copy the last commit with `git hash | pbcopy clip` ``` [alias] hash = "!f(){\ git log -n 1 --pretty=format:"%H";\ }; f" ``` – Pants Apr 12 '19 at 15:30
@Jaro After running this command, git log -n 1 --pretty=format:"%H", I get the commit id perfectly fine. I have a question, how can I store this commit-id in a variable in a batch script? – Shreya Maheshwari Mar 24 '22 at 07:24
Never mind, I found the solution. https://stackoverflow.com/questions/37004019/how-do-i-get-the-output-from-a-call-to-git-into-a-variable-in-a-batch-script – Shreya Maheshwari Mar 24 '22 at 07:48

John Szakmeister · Accepted Answer · 2019-07-18T07:46:26.150

Use git ls-remote git://github.com/<user>/<project>.git. For example, my trac-backlog project gives:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git
5d6a3c973c254378738bdbc85d72f14aefa316a0    HEAD
4652257768acef90b9af560295b02d0ac6e7702c    refs/heads/0.1.x
35af07bc99c7527b84e11a8632bfb396823326f3    refs/heads/0.2.x
5d6a3c973c254378738bdbc85d72f14aefa316a0    refs/heads/master
520dcebff52506682d6822ade0188d4622eb41d1    refs/pull/11/head
6b2c1ed650a7ff693ecd8ab1cb5c124ba32866a2    refs/pull/11/merge
51088b60d66b68a565080eb56dbbc5f8c97c1400    refs/pull/12/head
127c468826c0c77e26a5da4d40ae3a61e00c0726    refs/pull/12/merge
2401b5537224fe4176f2a134ee93005a6263cf24    refs/pull/15/head
8aa9aedc0e3a0d43ddfeaf0b971d0ae3a23d57b3    refs/pull/15/merge
d96aed93c94f97d328fc57588e61a7ec52a05c69    refs/pull/7/head
f7c1e8dabdbeca9f9060de24da4560abc76e77cd    refs/pull/7/merge
aa8a935f084a6e1c66aa939b47b9a5567c4e25f5    refs/pull/8/head
cd258b82cc499d84165ea8d7a23faa46f0f2f125    refs/pull/8/merge
c10a73a8b0c1809fcb3a1f49bdc1a6487927483d    refs/tags/0.1.0
a39dad9a1268f7df256ba78f1166308563544af1    refs/tags/0.2.0
2d559cf785816afd69c3cb768413c4f6ca574708    refs/tags/0.2.1
434170523d5f8aad05dc5cf86c2a326908cf3f57    refs/tags/0.2.2
d2dfe40cb78ddc66e6865dcd2e76d6bc2291d44c    refs/tags/0.3.0
9db35263a15dcdfbc19ed0a1f7a9e29a40507070    refs/tags/0.3.0^{}

Just grep for the one you need and cut it out:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git | \
   grep refs/heads/master | cut -f 1
5d6a3c973c254378738bdbc85d72f14aefa316a0

Or, you can specify which refs you want on the command line and avoid the grep with:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git refs/heads/master | \
   cut -f 1
5d6a3c973c254378738bdbc85d72f14aefa316a0

Note: it doesn't have to be the git:// URL. It could be https:// or git@github.com: too.

Originally, this was geared towards finding out the latest commit of a remote branch (not just from your last fetch, but the actual latest commit in the branch on the remote repository). If you need the commit hash for something locally, the best answer is:

git rev-parse branch-name

It's fast, easy, and a single command. If you want the commit hash for the current branch, you can look at HEAD:

git rev-parse HEAD

`git rev-parse my_branch_name` OR `git log -n 1 my_branch_name | grep commit | awk '{ print $2 }'` simpler answer; will output only the last commit hash of `my_branch_name` — betoharres, Jul 18 '19 at 02:51
@betoharres the OP was originally trying to determine the commit on a remote repository (not what we have in `refs/remotes`, but the actual remote repo). `git rev-parse branch-name` is definitely the way to go for a local branch. — John Szakmeister, Jul 18 '19 at 08:24
This only works in the field of the `git svn` because `git svn fetch` changes the `git log` output and so the `git log` no longer can be used to get the last *remote* git repository commit hash. — Andry, Sep 30 '19 at 11:18
@Andry I'm not sure what you mean... I'm having trouble following your comment. Can you explain more? — John Szakmeister, Sep 30 '19 at 22:20
@JohnSzakmeister I meant this the only which works for the `git svn`, because for example, `git svn fetch` changes the output of the `git log` too. — Andry, Sep 30 '19 at 23:22
@Andry I guess that's my issue, I expect both `git rev-parse` and `git log` to work the same, just that `rev-parse` is more direct. — John Szakmeister, Oct 01 '19 at 08:20
@JohnSzakmeister For me that was the case where the `git log` was affected by other commands and I could not use it in the first place. — Andry, Oct 01 '19 at 14:34

score 2 · Answer 3 · edited Nov 18 '15 at 23:33

2

Try using git log -n 1 after doing a git checkout branchname. This shows the commit hash, author, date and commit message for the latest commit.

Perform a git pull origin/branchname first, to make sure your local repo matches upstream.

If perhaps you would only like to see a list of the commits your local branch is behind on the remote branch do this:

git fetch origin
git cherry localbranch remotebranch

This will list all the hashes of the commits that you have not yet merged into your local branch.

edited Nov 18 '15 at 23:33

Etskh

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answered Mar 28 '13 at 08:48

Rick van Bodegraven

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my requirement is to check local repositories and github repositories commit hash are same or not , how can we do this ? – mbdvg Mar 28 '13 at 09:02
As far as I know, there is no way the commit hashes could differ between your local and your remote repo's for the same commits. Did you perhaps mean a list of the commits your local repository is missing versus the remote repository? – Rick van Bodegraven Mar 28 '13 at 09:05
Yes Rick van , there is a mismatch ,so , i want to show that there is a difference in local and github repo , So need a way to find out – mbdvg Mar 28 '13 at 09:09

score 2 · Answer 4 · edited Feb 21 '18 at 18:10

2

you can git fetch nameofremoterepo, then git log

and personally, I alias gitlog to git log --graph --oneline --pretty --decorate --all. try out and see if it fits you

edited Feb 21 '18 at 18:10

Community

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answered Mar 28 '13 at 08:50

nglinh

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And git fetch does not pull the changes just yet – nglinh Mar 28 '13 at 08:51
`--online` is a shorthand for `--pretty=oneline --abbrev-commit`. But you are using `--pretty` as well, which reverts `--pretty=oneline`... I would recommend `git log --graph --abbrev-commit --decorate --all` instead. – Felix Kling Mar 28 '13 at 09:00
Cool. I didn't notice that. THanks! – nglinh Mar 30 '13 at 06:54

score 1 · Answer 5 · answered Jan 06 '22 at 13:57

Adding to John Szakmeister's excellent answer above (https://stackoverflow.com/a/15679887/4597676), you could do this without touching the mouse by piping the output of git rev-parse BRANCHNAME to a command like pbcopy or similar:

git rev-parse HEAD | pbcopy.
you can then pbpaste, or paste it using your mouse.
It looks like on a linux machine you should be able to use xsel or similar. (i have not tried this myself). https://askubuntu.com/q/1157488.
it looks like you can use clip.exe on Windows from the clipboard. cf: https://www.winhelponline.com/articles/248/1/Copy-command-line-output-directly-to-the-Clipboard-using-Clipexe.html

score 0 · Answer 6 · answered Mar 28 '13 at 09:17

In a comment you wrote

i want to show that there is a difference in local and github repo

As already mentioned in another answer, you should do a git fetch origin first. Then, if the remote is ahead of your current branch, you can list all commits between your local branch and the remote with

git log master..origin/master --stat

If your local branch is ahead:

git log origin/master..master --stat

--stat shows a list of changed files as well.

If you want to explicitly list the additions and deletions, use git diff:

git diff master origin/master

score 0 · Answer 7 · answered Jul 17 '13 at 02:08

Note that when using "git log -n 1 [branch_name]" option. -n returns only one line of log but order in which this is returned is not guaranteed. Following is extract from git-log man page

.....
.....
Commit Limiting

Besides specifying a range of commits that should be listed using the special notations explained in the     description, additional commit limiting may be applied.

Using more options generally further limits the output (e.g. --since=<date1> limits to commits newer than <date1>, and using it with --grep=<pattern> further limits to commits whose log message has a line that matches <pattern>), unless otherwise noted.

Note that these are applied before commit ordering and formatting options, such as --reverse.

-<number>
-n <number>
.....
.....

Command to get latest Git commit hash from a branch

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