feat: add elevate, where, iscmd

README.md

@@ -2,7 +2,7 @@
 
 > fun execline scripts to try at home
 
-### println
+#### println
 
 like echo, but chainable
 
@@ -11,7 +11,7 @@ println "test"
 echo test1
 ```
 
-### eprintln
+#### eprintln
 
 println but to stderr :)
 
@@ -20,7 +20,7 @@ eprintln "test"
 echo test1
 ```
 
-### tdefine
+#### tdefine
 
 ternary define: `$1 = if ($4) { $2 } { $3 } cmd...`
 
@@ -30,3 +30,28 @@ tdefine sucmd "doas" "exec" { s6-test $uid != 0 }
 
 $sucmd s6-linux-init-shutdown
 ```
+
+#### elevate
+
+the same thing from above but just one command (and with sudo fallback)
+
+```sh
+elevate s6-linux-init-shutdown
+```
+
+#### where
+
+which(1) but in execline
+
+```sh
+backtick -E sh { where sh }
+echo "shell full path: $sh"
+```
+
+#### iscmd
+
+exits with 0 if command exists
+
+```sh
+tdefine shell "zsh" "sh" { iscmd zsh }
+```

elevate

@@ -0,0 +1,8 @@
+#!/bin/execlineb
+
+backtick -E uid { id -u }
+tdefine lift "doas" "sudo" { iscmd doas }
+tdefine sucmd "$lift" "exec" { s6-test $uid != 0 }
+elgetpositionals
+$sucmd
+$@

iscmd

@@ -0,0 +1,5 @@
+#!/bin/execlineb
+
+elgetpositionals
+redirfd -w 1 /dev/null
+where $1

where

@@ -0,0 +1,13 @@
+#!/bin/execlineb
+
+elgetpositionals
+importas -isd ":" path PATH
+
+backtick -E result {
+	forx -E -x 0 dir { $path }
+		if { s6-test -x ${dir}/$1 }
+			echo ${dir}/$1
+}
+
+if { s6-test -n "$result" }
+echo "$result"