How to use file parameter in jenkins

Question

I am executing parameterised build in jenkins to count no. of lines in file which has 1 file parameter. Its file location is pqr. The name of the script file is

Answer 1

There is a a bug since ages that makes impossible to use fileParameter:

• Handle file parameters
• file parameter not working in pipeline job

Answer 2

If it's to do with Free-Style job & if your configuration looks similar to this - https://i.stack.imgur.com/vH7mQ.png then you can run simply do sh linecount.sh ${pqr} to get what you are looking for?

Answer 3

The uploaded file will not retain the same name as it has on your local computer. It will be named after the File location argument specified in the file parameter settings: In this example I will get a file called file.txt in my workspace root, regardless of what I call it on my computer. So if I now build my job and enter the following in the parameter dialog (note that my local filename is table.html):

Then I get the following in the log (I have a build step which does ls -l):

Building on master in workspace /var/lib/jenkins/workspace/fs
Copying file to file.txt
[fs] $ /bin/sh -xe /tmp/hudson845437350739055843.sh
+ ls -l
total 4
-rw-r--r-- 1 jenkins jenkins 292 Feb 15 07:23 file.txt
Finished: SUCCESS

Note that table.html now is called file.txt, e.g. what I entered as File location.

So in you're case the command should be:

sh linecount.sh pqr

Answer 4

There is a workaround for this issue https://github.com/janvrany/jenkinsci-unstashParam-library and in a pipeline script you do:

library "jenkinsci-unstashParam-library"
node {
  def file_in_workspace = unstashParam "file"
  sh "cat ${file_in_workspace}"
}