CODEWITHSUNDEEP
go
Gopi
Gopi

Reputation: 51

exec: "cksum": executable file not found in $PATH in golang

I'm trying to get the cksum of one file using Go by executing the command cksum.

Getting the below error:

exec: "cksum": executable file not found in $PATH

Below is the code:

cmd := exec.Command("/bin/cksum",dst)

Thanks.

Upvotes: 1

Views: 5140

Answers (2)

Dave C
Dave C

Reputation: 7878

From the documentation for exec.Command:

If name contains no path separators, Command uses LookPath to resolve the path to a complete name if possible. Otherwise it uses name directly.

So it's slightly better to use cmd := exec.Command("cksum", …) and let it be found where ever it exists on the path. Alternatively you should have run which cksum which on nearly every unix system will give: /usr/bin/cksum.

But better yet, make your code portable to any OS that can run Go and use hash/crc32. Or even better, if you can remove any requirements on having to use CRC32 (which is what the ancient cksum uses), pick one of the other far superior hashes from hash/…, crypto/… (e.g. sha256), or golang.org/x/crypto/… (e.g. sha3).

Upvotes: 3

Akash Shinde
Akash Shinde

Reputation: 955

Most of the executable binaries are present under /usr/bin directory,so you need to modify your code as below.

cmd := exec.Command("/usr/bin/cksum",dst)

Upvotes: 1

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