when i add file to ipfs and will get the hash
but if i lose the hash how can get it again
Hello, you can see all your local files if you navigate to the webui. It’s located at:
http://127.0.0.1:5001/webui. On the page press the files tab, you will then see a list of all local files. Hope it helps!
You can also list your local blocks with ipfs refs local
. However, if you added the file yourself, it was likely automatically pinned so you can find it in your ipfs pin ls
list.
To view only the files that you uploaded:
ipfs pin ls | egrep recursive
To count the number of pinned files you are hosting:
ipfs pin ls | egrep recursive | wc -l
The solution by @stebalien is correct as well, in addition to the recursive files it will list the hash of indirect files as well.
Incase you were going to look that up:
direct = pin that specific object.
recursive = pin that specific object, and indirectly pin all its decendants
indirect = pinned indirectly by an ancestor (like a refcount)
Note that if you just want to print out the recursive pins you should just use
ipfs pin ls -t recursive
It’s going to be way faster than getting all pins and then grepping the recursive ones (especially if you have a lot of large pins).