How to check whether the sftp script is successful??

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# 1  
Old 09-04-2013
How to check whether the sftp script is successful??


how can i check whether the sftp connectivity is successful or not??
i am using expect script to connect to sftp..

spawn /usr/bin/sftp
expect "'s password:"
send "password\r"
expect "sftp>"
send "mput *.txt\r"
expect "sftp>"
send "bye\r"
expect eof

i am calling this sftp script from a shell script and checking the return code for 0.

if [ $RC -eq 0 ]; then
   echo "successful"
   echo "failed"

---------- Post updated at 03:41 PM ---------- Previous update was at 03:11 PM ----------

the sftp script gave this error

send: spawn id exp4 not open
    while executing
"send "mput *.txt\r""
    (file "/home/sftp/sftp_script" line 5)^M

# 2  
Old 09-04-2013
You should not be injecting insecure plaintext passwords into sftp with the expect brute-forcing tool. sftp allows you to use keys, which will make your life much, much simpler, since you can script it directly, run it and wait, instead of having to micromanage every line it prints and reads. Also far more secure, since your scripts will not need to contain your password in plaintext anymore!
# 3  
Old 09-04-2013
hope it helps but put your ssh keys to server as @Corona688 mentioned.

sftp $SFTP_USER@$SERVER <<EOF | grep -q 'No such file'
if [ $? -eq 1 ] ; then
  echo 'no such remote file'

# 4  
Old 09-04-2013
The | grep -q 'No such file' might be useless because the error likely goes to stderr, while the pipe reads from stdout.
You need some additional file descriptor magic such as
2>&1 | grep ... (merge stderr with stdout) or
2>&1 >/dev/null | grep ...(merge stderr with stdout then suppress stdout, i.e. capture only stderr).
Further the exit status is reverse: if grep finds something (an error), the exit status is zero!
The following runs directly on the get stuff, lets grep print an error,
and adds an "okay" otherwise.
sftp $SFTP_USER@$SERVER <<EOF 2>&1 | grep 'No such file'
if [ $? -eq 1 ]; then
  # grep did not find an error
  echo "okay"

Last edited by MadeInGermany; 09-04-2013 at 06:38 PM..
# 5  
Old 09-05-2013
is there any way to use ftp also without hardcoding the password in the script? currently i am using the below script for ftp

ftp -n remote_server << FTP
  quote USER user
  quote PASS passwrd
  ls -l

# 6  
Old 09-05-2013
@Little : try looking at the man page for netrc you can use this to set your ftp credentials
# 7  
Old 09-05-2013
Originally Posted by spredwood
@Little : try looking at the man page for netrc you can use this to set your ftp credentials
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