psexec assistance, parse error

Whats wrong with this? Command echo f|xcopy "\\server\client\connection.RDP" "C:\Users\Public\Desktop\connection.RDP" works fine if you run it by itself.

Pass it through psexec I get Parse Error
Connecting to STC701...
Starting PsExec service on STC701...
Connecting with PsExec service on STC701...
Starting cmd on STC701...
cmd exited on STC701 with error code 4.

@ECHO ON

set controlfile=computers.txt


FOR /F %%L IN (%controlfile%) DO (
  SET "line=%%L"
  psexec \\%%L cmd /c "echo f|xcopy "\\server\client\connection.RDP" "C:\Users\Public\Desktop\connection.RDP"
) >> allpcsresults.txt 2>&1

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