system command in gnuplot

Hello

Now I am using gnuplot (Version 5.2 patchlevel 6) on a Linux system.
The information of operating system as follow
Linux version 4.4.162-94.72-default (geeko@buildhost) (gcc version 4.8.5 (SUSE Linux) )
LSB Version:    n/a
Distributor ID: SUSE
Description:    SUSE Linux Enterprise Server 12 SP3
Release:        12.3
Codename:       n/a

My question:
 I am trying to launch a system command in gnuplot like
Terminal type is now 'qt'
gnuplot> system(" paste <(ls Q*) <(ls F*)")

show me the error message as
sh: -c: line 0: syntax error near unexpected token `('
sh: -c: line 0: ` paste <(ls Q*) <(ls F*)'

But if I exit the gnuplot and run the command, it can work.
qin@csc1:~/qin /txt> paste <(ls Q*) <(ls F*)

any help would be much appreciated
have a nice day

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