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.
– Stéphane Chazelas
Nov 8 '12 at 22:34
zsh skills.
– manatwork
Nov 9 '12 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.
– jw013
Nov 8 '12 at 16:59
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
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.
– underscore_d
Aug 14 '18 at 13:14
Mybru, you can mos pipe your commands like so:
echo '
lcd /home
cd /myhome
get file
' | sftp -o PasswordAuthentication=no user@host
