deb-substvars(5) dpkg suite deb-substvars(5) (NAME) deb-substvars - (SYNOPSIS) debian/substvars, debian/binary-package.substvars, variables (DESCRIPTION) dpkg-source dpkg-gencontrol dpkg-genchanges ( .dsc dpkg-source dpkg-gencontrol dpkg-genchanges) . (Variable Syntax) ${variable-name} . - (a-zA-Z0-9) (-) (:) - . . (File Syntax) . . . # () . : = . ?= . dpkg 1.21.8. != . dpkg 1.22.7. $= .dsc .deb . (`:') tool:Depends. . dpkg 1.23.0. : "some-package:Depends?=other-package (= 1.0), the-package". (Substitution) -V . debian/substvars ( -T ) . ${} ( ) $ . (escape sequence) ${}{VARIABLE} ${VARIABLE} . . . Package Source Architecture . . . ${Description} "foo is bar.${Newline}foo is great." : Description: foo application ${Description} . More text. : Description: foo application foo is bar. foo is great. . More text. (Built-in Variable) : Arch ( DEB_HOST_ARCH). vendor:Name ( dpkg 1.20.0). Vendor dpkg-vendor(1) . vendor:Id ( dpkg 1.20.0). vendor:Name . source:Version ( dpkg 1.13.19). source:Upstream-Version epoch ( dpkg 1.13.19). binary:Version ( binNMU source:Version dpkg 1.13.19). Source-Version ( changelog). (obsolete) source:Version binary:Version . source:Synopsis Description ( dpkg 1.19.0). source:Extended-Description Description ( dpkg 1.19.0). Installed-Size . . dpkg-gencontrol ( ) . : . Extra-Size . Installed-Size ( ) Installed-Size . S:field-name field-name ( dpkg 1.18.11). . . F:field-name field-name ( ). . Format .changes . Format .changes . Newline, Space, Tab . shlibs:dependencyfield dpkg-shlibdeps . dpkg:Upstream-Version dpkg ( dpkg 1.13.19). dpkg:Version dpkg ( dpkg 1.13.19). (FILES) debian/substvars . (SEE ALSO) dpkg(1), dpkg-vendor(1), dpkg-genchanges(1), dpkg-gencontrol(1), dpkg-shlibdeps(1), dpkg-source(1). 1.23.7-dirty 2026-03-06 deb-substvars(5)