Under workstations we also define the default printer with printer name and the Linux command to be executed.

**Example:** 
^Printer   ^Command          ^
|myPrinter |lpr -P myPrinter |

Using the **-o** option of the **lpr** command you can pass various options to the printer.
If you have a printer which is configured to normally print double-sided then you want to use this command:

^Printer   ^Command          ^
|myPrinter |lpr -P myPrinter -o sides=one-sided |

The program will save this option but when reading it ends up like **lpr -P myPrinter -o sides**

The reason is that the default printer is saved as **MyPrinter=lpr -P myPrinter -o sides=one-sided** and after reading this line the program splits the string at the '=' sign into printer name (left side) and printer command (right side). As we have now **two** equal signs in the string **'=one-sided**' get's dropped.

====== Solution ======
Define a basic shell script containing the printer command.

**Example:**
<file>
#!/bin/sh
# printer wrapper file for ledger
`lpr -P myPrinter -o sides=one-sided $1`
exitcode=$?
exit $?
</file>

Save the file as **myprinter.sh**, make sure that it is executable (chmod ugoa+x myprinter.sh) and define the filename as printer command in the system.