>>Writes stdin to disk - appending contents if file already exists
This is used to redirect the stdout of a command and append it to a file. If that file does not exist, then the file is created.
This behaves similarly to the Bash (et al) token except it doesn’t support adding alternative file descriptor numbers. Instead you will need to use named pipes to achieve the same effect in Murex.
» out "Hello" >> example.txt
» out "World!" >> example.txt
» open example.txt
Hello
World!This is just syntactic sugar for -> >>. Thus
when the parser reads code like the following:
out "foobar" >> example.txtit will compile an abstract syntax tree which would reflect the following code instead:
out "foobar" | >> example.txtTo truncate a file (ie overwrite its contents) use |>
instead.
>>fappendpipe: Manage Murex named pipesout: Print a string to the stdout with a trailing new
line character<pipe>: Reads from a Murex named pipe>: Writes stdin to disk - overwriting contents if
file already exists-> Arrow Pipe:
Pipes stdout from the left hand command to stdin of the right hand
command| POSIX Pipe:
Pipes stdout from the left hand command to stdin of the right hand
commandThis document was generated from builtins/core/io/write_doc.yaml.
This site's content is rebuilt automatically from murex's source code after each merge to the master branch. Downloadable murex binaries are also built with the website.
Last built on Wed Dec 10 23:24:04 UTC 2025 against commit ec623f9ec623f9e05b9cd816d1c93e90c807e23ff173cd9.
Current version is 7.1.4143 (unknown) which has been verified against tests cases.