Interactive mode & batch scripts

When you're running several commands against the same database, you don't want to repeat -db each time. Two ways to avoid that:

Interactive mode

Start und with a database to open an interactive session:

$ und myProject.und
Welcome to und. Type "help" for a list of commands. "quit" to quit
und> add thisFile.txt         # runs against myProject.und, specified at the start
File: C:\work\src\thisFile.txt has been added.
Files added: 1
und> analyze -changed
und> -db otherProject.und      # switch databases mid-session

Every command runs against the remembered database until you switch it with -db. Full details are on the und interactive reference page.

Batch: und process

und process runs all commands in a text file, remembering the database set at the start:

# build.txt  — lines after '#' are ignored, one command per line
add /path/to/src
settings -C++AddFoundFilesToProject on
analyze
codecheck -exitstatus "MyConfig" out

und -db myProject.und process build.txt

The file uses one command per line; anything after # is a comment. The database comes from the command line (or interactive session) until a -db (or a bare project.und line) inside the file changes it. You can also run a file directly at startup — und build.txt is shorthand for und process build.txt. See the und process reference page.