commands fail if your login shell is tcsh

[cove]

tcsh appears to handle escaped chars differently than bash, which results in commands failing with a syntax error.

tcsh --version
tcsh 6.14.00 (Astron) 2005-03-25 (x86_64-unknown-linux) options wide,nls,dl,al,kan,sm,rh,color,filec

e.g.
def test():
file_write('/afile', 'data')

Results in:
[myserver01] Executing task 'test'
[myserver01] run: test -e '/afile' && echo OK ; true
[myserver01] Passphrase for private key:
[myserver01] out: OK

[myserver01] run: sha256sum "/afile" | cut -d" " -f1
[myserver01] out: Unmatched ".

Fatal error: run() received nonzero return code 1 while executing!

Requested: sha256sum "/afile" | cut -d" " -f1
Executed: /bin/bash -l -c "sha256sum "/afile" | cut -d" " -f1"

Aborting.
Disconnecting from myserver01... done.

[sebastien]

Cuisine is only designed for SH-compatible shells, so TCSH/CSH is not supported.