better install and update scripts

misc/install.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+# https://stackoverflow.com/a/20816534
+SCRIPTNAME="${0##*/}"
+warn() {
+    printf >&2 "$SCRIPTNAME: $*\n"
+}
+iscmd() {
+    command -v >&- "$@"
+}
+checkdeps() {
+    local -i not_found
+    for cmd; do
+        iscmd "$cmd" || {
+            warn $"$cmd is not found"
+            let not_found++
+        }
+    done
+    (( not_found == 0 )) || {
+        warn $"Install dependencies listed above to use $SCRIPTNAME"
+        exit 1
+    }
+}
+
+checkdeps wget unzip chmod systemctl
+
+chmod +x misc/update.sh
+./misc/update.sh
+touch env
+
+cd misc
+mkdir -vp ~/.config/systemd/user/
+ln -sv $PWD/csengo.service ~/.config/systemd/user/
+systemctl --user daemon-reload
+systemctl --user enable --now csengo.service
+systemctl --user status csengo.service

misc/update.sh

@@ -1,10 +1,10 @@
 #!/bin/sh
 set -e
 
-rm -v csengo-x86_64-unknown-linux-gnu.zip
+rm -vf csengo-x86_64-unknown-linux-gnu.zip
 wget https://nightly.link/beni69/csengo/workflows/ci/main/csengo-x86_64-unknown-linux-gnu.zip
 
-rm -v csengo
+rm -vf csengo
 unzip csengo-x86_64-unknown-linux-gnu.zip
 chmod +x ./csengo