Section 6.5 Shell Arithmetic says,
"Within an expression, shell variables may also be referenced by name without
using the parameter expansion syntax. A shell variable that is null or unset
evaluates to 0 when referenced by name without using the parameter expansion
syntax." - http://www.gnu.org/s
...
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Peggy Russell
On 04/03/2018 08:49 AM, Chet Ramey wrote:
On 4/2/18 5:16 PM, PRussell wrote:
Section 6.5 Shell Arithmetic says,
"Within an expression, shell variables may also be referenced by name without
using the parameter expansion syntax. A shell variable that is null o
Hi,
The error seems to be localized to the expansion of PS4 when "set -x" is active.
Please see sample script below.
I am aware of the unusual parameter expansion for FUNCNAME. There might be a
local historical reason. :-)
It does not happen outside of the PS4 expansion. It also behaves diffe
