'Use bash to send command to LFTP and then staying in interactive mode

Forgive the phrasing; haven't done anything with bash for 15 years.

I am trying to write a shell script that will run and connect to lftp and then execute several commands, specifically:

set ftp:ssl-force on
set ftp:ssl-protect-data on
set ssl:verify-certificate no

I then want to remain inside lftp so that I can send additional commands (e.g., I don't know what filename I am downloading until I can do an ls on a remote directory).

When I try to write a bash script to pipe commands to lftp, it works but then also immediately quits lftp when it reaches the last line of the script. Is there a way to prevent that from happening?

linuxbashshelllftp


Solution 1:[1]

Use lftp's -e option:

lftp -e 'set ftp:ssl-force on; set ftp:ssl-protect-data on; set ssl:verify-certificate no'

According to lftp's manual:

  • -e commands
    Execute given commands and don't exit.

Solution 2:[2]

concat stdin after your script

cat yourscript /dev/stdin | your_tftp_command

cat also accept - as special filename argument for stdin

cat yourscript - | your_tftp_command

Sources

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Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Nahuel Fouilleul

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