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How would you go about getting a file from a SFTP server if the file has today date in the name of file?

I know the mget and get command is used to pull the file over, but I can't seem to find anything on pulling a file if it has a certain timestamp on it. I'm trying to write a bash script to pull this file down every morning but the name of the file changes everyday.

Example of the file I am trying to get pulled down from a sftp:

get arc.20201005.*

What I have tried:

get arc.$(date +%Y%m%d).*
get arc.(date +%Y%m%d).*
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  • Does it have to be sftp or could you use scp? Commented Oct 5, 2020 at 15:11
  • Does your example filename of arc.20201005.* work as expected? Have you tried: get arc.$(date +%Y%m%d).\* ? I'm wondering if your local shell is expanding the *. Commented Oct 5, 2020 at 15:12

1 Answer 1

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Figured out the answer. Since SFTP doesn't allow variables and has limited commands itself. I instead did the following.

#Set Variables

date=(date +%Y%m%d)

echo -e "mget /directorypath/arc.$date.*" | sftp username@IPaddress

The -e in the echo command is key to this working since it enables interpretation of backslash escapes.

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