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The following command sends one command to sftp using one line:
sftp -o PasswordAuthentication=no user@host" <<<"lcd /home"
How to send multiple lines to sftp using one line. Is there a way to insert carriage returns or something to achieve this, for example:
sftp -o PasswordAuthentication=no user@host" <<<"lcd /home\n cd /myhome\n get file"
The idea is to NOT use the sftp -b option where an external file listing commands is loaded.
From the here-string (<<<) syntax you used I guess your shell is bash, so you can also use string with backslash-escaped characters ($''):
sftp -o PasswordAuthentication=no user@host <<< $'lcd /home\n cd /myhome\n get file'
The portable alternative is here-document:
sftp -o PasswordAuthentication=no user@host <<END
lcd /home
cd /myhome
get file
END
<<< was introduced first by zsh (though inspired by rc) and was later added to ksh93 and then bash.
Nov 8, 2012 at 22:34
zsh skills.
Nov 9, 2012 at 8:49
Use the -b/--batchfile option to have proper error handling:
printf '%s\n' 'lcd /home' 'cd /myhome' 'get file' | sftp -b - user@host
Yes, you can just use echo -e
echo -e "lcd /home\ncd /myhome\nget file" | sftp user@host
echo is very non-standard - echo -e doesn't work the same everywhere, so you'd have to check first. Alternatively, just use printf which is much more portable and should work the same everywhere.
It is not necessary to avoid the -b option to avoid writing the batch file to disk. Using process substitution you can create the batch on the fly.
batch() {
echo lcd /home
echo cd /myhome
echo get file
}
sftp -b <(batch) -o PasswordAuthentication=no user@host
Mybru, you can mos pipe your commands like so:
echo '
lcd /home
cd /myhome
get file
' | sftp -o PasswordAuthentication=no user@host
Use native sftp command
sftp -o PasswordAuthentication=no user@host:/home/myhome/file
lcd and cd do different things. You've just combined the paths into something that will not exist.
Aug 14, 2018 at 13:14