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How to find whether a particular command has failed inside an sftp script?

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Top Forums Shell Programming and Scripting How to find whether a particular command has failed inside an sftp script?
# 1  
Old 09-19-2013
How to find whether a particular command has failed inside an sftp script?
hi,

how can i know whether a command inside an sftp script has failed or not?

i have a sftp expect script
Code:
#!/usr/bin/expect
spawn /usr/bin/sftp abc@ftp.abc.com
expect "sftp>"
send "cd dir\r"
expect "sftp>"
send "mput abc.txt\r"
expect "sftp>"
send "mput def.xls\r"
expect "sftp>"
send "bye\r"
expect eof

suppose there is no directory named "dir" in sftp remote server, then the command at line 4 i.e. cd dir will fail and the script should not proceed further.
how can i do this?
# 2  
Old 09-19-2013
Code:
expect {
  "550 dir: No such file or directory" {send "quit\n" ; exit }
  "250 CWD command successful" {exp_continue}
}

# 3  
Old 09-19-2013
Quote:
Originally Posted by MDominok
Code:
expect {
  "550 dir: No such file or directory" {send "quit\n" ; exit }
  "250 CWD command successful" {exp_continue}
}

where should i add this code block? and how it works??
# 4  
Old 09-19-2013
Right after the
Code:
send "cd dir\r"

You probably have to adjust the "550 .." and "250 CWD..." to your servers response as well.

This works like case/switch. You could add even more "cases".
# 5  
Old 09-24-2013
Quote:
Originally Posted by MDominok
Right after the
Code:
send "cd dir\r"

You probably have to adjust the "550 .." and "250 CWD..." to your servers response as well.

This works like case/switch. You could add even more "cases".
I am not getting how to adjust the return codes. can you give me an example how to do that.. modify the above sample script given by me.
# 6  
Old 09-24-2013
Not a trick question; simply change the text to match the exact text your sftp server sends when you do those commands manually...
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