feat(commands): more commands (#30)

- I wrote a scripts to copy and generate all commands missing in iris
from fig repo: https://github.com/withfig/autocomplete
- Add a new script to generate commands docs about which commands
currently are inside commands folder
377d4aac663590e504fe39a92eb4dac4cbd333b2
- Add more icons e64d4e70a1db61e62053460a882e093bd6373ab1

commands/sys/sysctl.go

@@ -0,0 +1,25 @@
+package sys
+
+import (
+	"github.com/versenilvis/iris/commands/core"
+)
+
+func init() {
+	core.Register(&core.Spec{
+		Name:        "sysctl",
+		Description: "Variable name",
+		Options: []core.Option{
+			{Name: "-A", Description: "List all the currently available non-opaque values"},
+			{Name: "-b", Description: "Force the value of the variable(s) to be output in raw, binary format"},
+			{Name: "-d", Description: "Print the description of the variable instead of its value"},
+			{Name: "-e", Description: "Separate the name and the value of the variable(s) with '='"},
+			{Name: "-h", Description: "Format output for human, rather than machine, readability"},
+			{Name: "-i", Description: "Ignore unknown OIDs"},
+			{Name: "-N", Description: "Show only variable names, not their values"},
+			{Name: "-n", Description: "Show only variable values, not their names"},
+			{Name: "-o", Description: "Show opaque variables (which are normally suppressed)"},
+			{Name: "-q", Description: "Suppress some warnings generated by sysctl to standard error"},
+			{Name: "-X", Description: "Equivalent to -x -a (for compatibility)"},
+		},
+	})
+}