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| -rw-r--r-- | doc/guix.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index c252f63ff6..fc8a51536d 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -1434,6 +1434,7 @@ availability of packages: @item --search=@var{regexp} @itemx -s @var{regexp} +@cindex searching for packages List the available packages whose name, synopsis, or description matches @var{regexp}. Print all the meta-data of matching packages in @code{recutils} format (@pxref{Top, GNU recutils databases,, recutils, @@ -1477,6 +1478,19 @@ that deal with printed circuit boards; removing the angle brackets around @code{board} would further add packages that have to do with keyboards. +And now for a more elaborate example. The following command searches +for cryptographic libraries, filters out Haskell, Perl, Python, and Ruby +libraries, and prints the name and synopsis of the matching packages: + +@example +$ guix package -s crypto -s library | \ + recsel -e '! (name ~ "^(ghc|perl|python|ruby)")' -p name,synopsis +@end example + +@noindent +@xref{Selection Expressions,,, recutils, GNU recutils manual}, for more +information on @dfn{selection expressions} for @code{recsel -e}. + @item --show=@var{package} Show details about @var{package}, taken from the list of available packages, in @code{recutils} format (@pxref{Top, GNU recutils databases,, recutils, GNU |