Forum: Cfengine Help Subject: Stopping Scalar Expansion Author: Authority Link to topic: https://cfengine.com/forum/read.php?3,17073,17073#msg-17073
Is there a way to make Cfengine 3 treat a variable as a truly literally string and not attempt variable expansion? I like to write in BASH and frequently make use of the bash style of capturing external program output, i.e. $(date). This just so happens to be the same style Cfengine uses for variables. Sometimes this is nice because I can write bash functions to mimic Cfengine's variable expansion and copy and paste strings from my promises and get the same result in bash, but I just ran into a problem trying to go the opposite way. I was trying to pass a line of bash including an external call as a parameter to a bundle. After figuring out I needed to replace my dollar signs with $(const.dollar) so I had things like $(const.dollar)(date), I realized that Cfengine was trying to expand variables when I used these strings I had passed as a parameter. In the end, Cfengine still wrote the string as I wanted since it couldn't expand the supposed variable, but it gave me warnings for each time I did. Perl and Bash both make the distinction between single and double quotes for whether to interpolate or not, but Cfengine appears to treat both the same. Does Cfengine have a function or other means of stopping variable expansion? _______________________________________________ Help-cfengine mailing list Help-cfengine@cfengine.org https://cfengine.org/mailman/listinfo/help-cfengine
