[[ -L ${chr}/usr/bin/esearch ]] || pkgs+=( esearch )
[[ -x ${chr}/usr/bin/strace ]] || pkgs+=( strace )
[[ -x ${chr}/usr/bin/time ]] || pkgs+=( time )
[[ -L ${chr}/usr/bin/esearch ]] || pkgs+=( esearch )
[[ -x ${chr}/usr/bin/strace ]] || pkgs+=( strace )
[[ -x ${chr}/usr/bin/time ]] || pkgs+=( time )