From beaf701d65e9f94d0539e705d6f58a65313c5655 Mon Sep 17 00:00:00 2001 From: zimoun Date: Fri, 26 Mar 2021 08:03:19 +0100 Subject: doc: Use the shell dollar substitution. See: https://unix.stackexchange.com/questions/126927/have-backticks-i-e-cmd-in-sh-shells-been-deprecated * doc/guix.texi: Replace the shell backquote deprecated substitution by the dollar one. --- doc/guix.texi | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'doc/guix.texi') diff --git a/doc/guix.texi b/doc/guix.texi index 892d0093b7..957f14bc75 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -1054,10 +1054,10 @@ Bash syntax and the @code{shadow} commands): @c for why `-G' is needed. @example # groupadd --system guixbuild -# for i in `seq -w 1 10`; +# for i in $(seq -w 1 10); do useradd -g guixbuild -G guixbuild \ - -d /var/empty -s `which nologin` \ + -d /var/empty -s $(which nologin) \ -c "Guix build user $i" --system \ guixbuilder$i; done @@ -4222,7 +4222,7 @@ Return the derivation(s) leading to the given store items For example, this command: @example -guix gc --derivers `guix package -I ^emacs$ | cut -f4` +guix gc --derivers $(guix package -I ^emacs$ | cut -f4) @end example @noindent @@ -10131,7 +10131,7 @@ Similarly, the following command builds all the available packages: @example guix build --quiet --keep-going \ - `guix package -A | cut -f1,2 --output-delimiter=@@` + $(guix package -A | cut -f1,2 --output-delimiter=@@) @end example @var{package-or-derivation} may be either the name of a package found in @@ -10837,8 +10837,8 @@ This works regardless of how packages or derivations are specified. For instance, the following invocations are equivalent: @example -guix build --log-file `guix build -d guile` -guix build --log-file `guix build guile` +guix build --log-file $(guix build -d guile) +guix build --log-file $(guix build guile) guix build --log-file guile guix build --log-file -e '(@@ (gnu packages guile) guile-2.0)' @end example @@ -12346,7 +12346,7 @@ For this type of graph, it is also possible to pass a @file{.drv} file name instead of a package name, as in: @example -guix graph -t derivation `guix system build -d my-config.scm` +guix graph -t derivation $(guix system build -d my-config.scm) @end example @item module @@ -12375,7 +12375,7 @@ example, the command below produces the reference graph of your profile (which can be big!): @example -guix graph -t references `readlink -f ~/.guix-profile` +guix graph -t references $(readlink -f ~/.guix-profile) @end example @item referrers @@ -12947,7 +12947,7 @@ their dependencies over to @var{host}, logged in as @var{user}: @example guix copy --to=@var{user}@@@var{host} \ - coreutils `readlink -f ~/.guix-profile` + coreutils $(readlink -f ~/.guix-profile) @end example If some of the items to be copied are already present on @var{host}, @@ -32915,8 +32915,8 @@ system configuration file. You can then load the image and launch a Docker container using commands like the following: @example -image_id="`docker load < guix-system-docker-image.tar.gz`" -container_id="`docker create $image_id`" +image_id="$(docker load < guix-system-docker-image.tar.gz)" +container_id="$(docker create $image_id)" docker start $container_id @end example @@ -33440,7 +33440,7 @@ The default @command{run-vm.sh} script that is returned by an invocation of @command{guix system vm} does not add a @command{-nic user} flag by default. To get network access from within the vm add the @code{(dhcp-client-service)} to your system definition and start the VM using -@command{`guix system vm config.scm` -nic user}. An important caveat of using +@command{$(guix system vm config.scm) -nic user}. An important caveat of using @command{-nic user} for networking is that @command{ping} will not work, because it uses the ICMP protocol. You'll have to use a different command to check for network connectivity, for example @command{guix download}. @@ -33455,7 +33455,7 @@ To enable SSH inside a VM you need to add an SSH server like 22 by default, to the host. You can do this with @example -`guix system vm config.scm` -nic user,model=virtio-net-pci,hostfwd=tcp::10022-:22 +$(guix system vm config.scm) -nic user,model=virtio-net-pci,hostfwd=tcp::10022-:22 @end example To connect to the VM you can run @@ -34509,7 +34509,7 @@ To verify which Bash your whole profile refers to, you can run (@pxref{Invoking guix gc}): @example -guix gc -R `readlink -f ~/.guix-profile` | grep bash +guix gc -R $(readlink -f ~/.guix-profile) | grep bash @end example @noindent @@ -34517,7 +34517,7 @@ guix gc -R `readlink -f ~/.guix-profile` | grep bash Likewise for a complete Guix system generation: @example -guix gc -R `guix system build my-config.scm` | grep bash +guix gc -R $(guix system build my-config.scm) | grep bash @end example Lastly, to check which Bash running processes are using, you can use the -- cgit v1.2.3