7z isn't a number

Can someone help me? I'm trying to create a backup script that will tar the
contains of a directory then zip the tar with a password. I'm using the
program 7-Zip for both the tarring and zipping. If the directory being
backed up has a backup.ps1 then the backup process is bypassed and the
script is called instead. Powershell is interpreting the application "7z"
as a number. What should I do?


$root_dir = 'C:\Temp'; # this is for testing
$ENV:PATH += 'C:\Program Files\7-Zip'
$ds = [System.IO.Directory]::GetDirectories($root_dir);
foreach ($d in $ds) {
cd $d;
if ([System.IO.File]::Exists($d + "/backup.ps1"))
{
powershell "backup.ps1";
}
else
{
#cmd '7z a -ttar backup';
#cmd '7z a -tzip test.tar.zip -mem=AES256 -p123 backup';
}
}

Were exactly doe's it fail? Can you provide the error description.

BTW, when you add to the PATH environment variable make sure to prefix it
with a semicolon:

$ENV:PATH += ';C:\Program Files\7-Zip'


If PATH conatins:

"c:\windows;C:\temp"

Then after you add to it it'll look like:



C:\Program Files\7-Zip'

-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Were exactly doe's it fail, Can you provide the error description?

BTW, when you add to the PATH environment variable make sure to precede it
with a semicolon:

$ENV:PATH += ';C:\Program Files\7-Zip'


For instance, If PATH is:

"c:\windows;C:\temp"


After your addition it'll look like:

"c:\windows;C:\tempC:\Program Files\7-Zip"

-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

I've updated the script as you said. The following is the error that I'm
getting.

Bad numeric constant: 7z.
At C:\Temp\backup_script.ps1:12 char:4
+ 7z <<<< a -ttar backup



$root_dir = 'C:\Temp';
$ENV:PATH += ';C:\Program Files\7-Zip'
$ds = [System.IO.Directory]::GetDirectories($root_dir);
foreach ($d in $ds) {
if ([System.IO.File]::Exists($d + "/backup.ps1"))
{
powershell "$d/backup.ps1"
}
else
{
cd $d
7z a -ttar backup
7z a -tzip test.tar.zip -mem=AES256 -p123 backup
}
}


"Shay Levi" <no@xxxxxx> wrote in message
news:8766a9441c8938ca31b30d0fefd2@xxxxxx

On Jan 31, 9:21 am, "Mike King" <emai...@xxxxxx> wrote: Try:

& "7z.exe"

(with the ampersand and double-quotes).

--
Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</
a>

Or simply use the PowerShell escape character:

PS> `7z

--
greetings
dreeschkind

"Kam-Hung Soh" wrote: