Handling double quotes in Plink (Windows) is very hard.
I need to send a argument including a double quote on both side but even though I tried lots of \", "\", "\"", I got several errors as following.
plink.exe -ssh -l testacct -pw kajskldf 10.31.137.199 " myexe where "id > 6000" "
The system cannot find the path specified.
or
Argument for 'where' option must be bounded by ""
Can you let me know how I can pass this kind of argument to a linux server?
UPDATE
This syntax works.
plink.exe -ssh -l testacct -pw kajskldf 10.31.137.199 " myexe where \\\""id \> 6000\\\"" "
Related
For a simple example:
ssh user#ip echo " messages"
this output like:
messages
not the expected(with heading spaces):
messages
and the heading spaces are skipped, how to keep these spaces within the returned output?
It is because ssh accepts only single command argument. If you pass more than one, all of them are passed through bash -c "command", which basically removes all the additional spaces from additional arguments. Workaround can be
ssh user#ip 'echo " messages"'
I am trying to do something like this inside ssh session:
Script
ssh remoteservername "
col=`sed -n "8p" /tmp/temp.txt`
echo $col>>/tmp/Ankur.txt
"
This is not working and it is printing empty line instead of text what I want to store in col variable, why so, and this is working:
ssh remoteservername "
sed -n "8p" /tmp/temp.txt>>/tmp/Ankur.txt
"
This Ankur.txt file is on the remote server....The main focus is how to get the output of the command inside a variable so that i can use it further.
Please tell how to make it work.
Thanks
When you use double quotes the variable names will get expanded before passing them, so $col is getting expanded locally before running on the remote server. You can either escape the $ like \$col or use single quotes around it, which is probably better since you want to use double quotes inside the command as well
ssh remoteservername '
col=`sed -n "8p" /tmp/temp.txt`
echo $col>>/tmp/Ankur.txt
'
Without changing the quotes
ssh remoteservername 'sed -n "8p" /tmp/temp.txt >> /tmp/Ankur.txt'
as you noted, still works, by redirecting the output directly into the file. This avoids the variable expansion problem from the double quotes above.
If you're going to have many steps though, you might want to just create a script on remoteservername and invoke that in your ssh command rather than doing a lot on the same command line.
You can use a local file to execute complex commands and to use variables in remote machine via SSH as shown below.
1. Create a input file 'input_file.txt'
#-- input_file.txt
col=`sed -n "8p" /tmp/temp.txt`
echo $col>>/tmp/Ankur.txt
2. Execute the commands of input file in remote server via SSH
ssh remoteservername "sh -s" < input_file.txt
I am trying the following string in command prompt to execute some (test) remote commands on my server:
plink.exe -ssh -pw [PASSWD] [U/NAME]#[SERVER] -m cmds.bat -v
In my cmds.bat file I have some test commands:
sleep 3
#echo off
ls -la ~/
#echo on
sleep 1
I now want to beef this up to run a remote script while passing an argument. The argument will be handled and appended by my VBA code. This is the part I am stuck at. Please note the following VBA code is only a snippet; the part that calls Plink. The surrounding code, I am happy with:
If re.Test(Msg.Subject) Then
Set matchCol = re.Execute(Msg.Subject)
For Each match In matchCol
shellStr = "plink.exe -ssh [USERNAME]#[SERVER] -pw [P/WORD] -m cmds.bat " & match
Shell(shellStr, vbNormalFocus)
Next
End If
The offending line is:
shellStr = "plink.exe -ssh [USERNAME]#[SERVER] -pw [P/WORD] -m cmds.bat " & match
I do not know how to append the value held in variable match (captured by the Regexp) to the string to be executed in opening the shell.
The bat file will handle the command for actually running the script on the remote Unix server, where instead of ls -la ~/ in the above example I will use:
python ~/myscript.py [ARGUMENT FROM VBA VARIABLE "match"]
But how do I pass this match variable's value into this?
you cannot do this; plink just doesn't support this usage. your best bet is doing what you suggested in your comment: build the script on the fly. (and maybe don't call it .bat, that seems misleading a bit …)
I have a bat file which executes bunch of sql scripts when i install my application. In installation dialogs user sets dbname, login and password which are then used in this bat file. Here it is:
SET _server="(local)"
SET _db=dbname
SET _user=sa
SET _pswr="!#$%^&*()<>"
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regsql.exe -S %_server% -d %_db% -U %_user% -P %_pswr% -A all
"%systemdrive%\Program Files\Microsoft SQL Server\100\Tools\Binn\SQLCMD.exe" -S %_server% -d %_db% -U %_user% -P %_pswr% -i .\createDB.sql
pause
Everything works great until password doesn't contain any special symbols. But if it does i get following error "Login failed for user 'sa'.". So it's obvious, that somethins wrong with password. And now the question: How can i escape these special symbols in bat file?
PS:
I tried replacing:
< - <
> - >
& - &
But it doesn't help.
Thanks!
You need to escape the percent (%) character and the caret(^) character by doubling them. Here is a list of problematic command line characters
SET _pswr="!#$%%^^&*()<>"
Tested as well with windows batch file on Windows 2008 Server SP2 with sqlcmd. Only needed to escape the % sign as %%. No need to escape the ^.
I'm trying to run a command line argument through VB.NET using the Shell() command.
I'm trying to use this piece of code:
FOR /R %I in (*.pdf) DO #pdf2swf.exe "%~fI" -o "%~dpI%~nI.swf" -f -T 9
-t -G
Using this:
Shell("FOR /R %I in (*.pdf) DO #pdf2swf.exe "%~fI" -o "%~dpI%~nI.swf" -f -T 9
-t -G ")
However, the interpreter is giving me this error:
Character is not valid. (BC30037)
For the %~ part.
I also tried created a string and passing the argument to the Shell() command by using Shell(StringName) but I still get the same error in the string.
How could I fix this issue?
This is not proper use of the Shell Method:
Public Shared Function Shell (PathName As String, [...]) As Integer
Parameters
PathName
Type: System.String
Required. String. Name of the program to execute, together with any required arguments and command-line switches. PathName can also include the drive and the directory path or folder.
The first parameter is supposed to be the name of a program to execute. FOR is not a program, it's a built-in feature of the cmd.exe command line interpreter.
As far as I can see, you have the following options:
Option 1: Explicitly call cmd.exe and pass the string that you want to execute with the /c parameter:
Shell("cmd.exe /c for /R %I ...")
Don't for get to duplicate quotation marks (") to escape them.
Option 2: Create a batch file and call the batch file using Shell.
Option 3: Don't use FOR to find the files you need, but use the methods of the System.IO namespace, e.g. Directory.EnumerateFiles, instead.
Escape your internal quote marks like this.
Shell("FOR /R %I in (*.pdf) DO #pdf2swf.exe ""%~fI"" -o ""%~dpI%~nI.swf"" -f -T 9 -t -G ")
As I recall, in VB.Net you escape double quote marks by doubling them.
EDIT:
It might help if you do the iteration outside of the Shell. (Certainly to debug)
Dim sourceFolder As String = "c:\Your call"
Dim sourceFiles As String[] = Directory.GetFiles(sourceFolder, "*.pdf")
ForEach file As String In sourceFiles
Dim justName As String = Path.GetFileNameWithoutExtension(file)
Dim shellCall As String = _
String.Format("pdf2swf.exe ""{0}"" -o ""{1}.swf"" -f -T 9 -t -G", _
file, justName)
Shell(shellCall)
EndFor
You could also cosider using System.Diagnostics.Process instead of Shell
Try escaping the quotes (2 quote marks - "" - in VB.NET, IIRC):
Shell("FOR /R %I in (*.pdf) DO #pdf2swf.exe ""%~fI"" -o ""%~dpI%~nI.swf"" -f -T 9 -t -G ")
If pdf2swf.exe is not in the same folder your program's executable is running from, that could be a reason you're getting the error.
Also, you'll have the same issue with the *.pdf files if they are in a different folder other than where your executable is. You can specify the drive and path to search:
Shell ("FOR /R C:\SomeFolder %I in (*.pdf) DO #pdf2swf.exe ""%~fI"" -o ""%~dpI%~nI.swf"" -f -T 9 -t -G ")