Like
xmlstarlet sel --var xp 'xpathExpression' -t -v '$xp' file.xml
is it possible to use internal variables in xidel
?
I know I can use shell
and "double quotes", but that's not the question.
readme, or xidel --usage
:
Variable assignment: $var := value adds $var to a set of global variables, which can be created and accessed everywhere. (Xidel prints the value of all variables to stdout, unless you use the --extract-exclude option)
So, for instance:
$ xidel -se 'var:="bar"' -e '"foo"||$var'
var := bar
foobar
$ xidel -s --extract-exclude=var -e 'var:="bar"' -e '"foo"||$var'
foobar
Or of course with the XQuery Let Clause (not global):
$ xidel -se 'let $var:="bar" return "foo"||$var'
foobar
xidel --help
:
--variable=<string> Declares a variable (value taken from environment if not given explicitely) (multiple variables are preliminary)
So, for instance:
$ xidel -s --variable="var=bar" -e '"foo"||$var'
$ xidel -s --variable var=bar -e '"foo"||$var'
foobar