There are 2 commands to do this

Example:
give apple
This gives the player 1 of the selected item

If the player wants more then he/she should use the following
Example:
given smoke bomb 6
will give the player 2 stacks of 3 smoke bombs

some items have weird spelling and wont work, for instance I cant spawn in Mechanical Parts.
The debug console will not say if you have typed in the name incorrectly, it will only not place the item in the players inventory

Also Spawning books by name will give you another book, sadly though these can only be stacked so much

Example:
given 10 fingerpointerwill give you 10 but the effect will only stack up to 10% chance to cause npc to attack when talked to.

Some cool items to spawn:
Phlash (speed drug)
Shock Grenade
Vomit Bomb
Berserk Bomb
Berserk Dart
Electro Hammer Pipe (OP)
Blue Molotov (My game crashes if one hits to many people at once so use at your own risk)
Banger (frag grenade thing does alot of DMG)
Dr. Feelgood Bomb (joy bomb)
Smoke Bomb
Tear Gas grenade(same as smoke bomb I believe but has yellow smoke)
Feramyle Syringe
New Formula Dexipam (increases max stamina dexipam is the smaller one)
New Formula Sanitol (increases max hp to 130%)
^both are perminate
Sunshine (fake joy pill to trick wellies)
Spiky Suit (upgraded padded suit that dmgs people)
Fab Threads ("Impress everybody even Wastrels" chance for wastrels to follow you)
Blending Suit (improves stealth)
Coin (The currency used in the game Coin works in console so there is no need for the word Soverign or however its spelt lol)

(immune to dmg I believe not sure if it keeps needs from decreasing)

(Fly is noclip without flying through walls, walk turns it off)

(The cheat everybody knows from almost every game with a console, allows for player to fly through walls... P.S. there is a easteregg in the pawn shop in the game *whispers*- don't tell anyone)

(saves game without needing to leave game/sleep I believe)

(unlocks all slots including that pesky secondary weapon)

(unlocks every crafting recipe)

(unlocks every readable lore I believe)

(Just type in Travel and it will show all the teleport locations. I haven't really tested this much so sorry if it breaks your game. Use at your own risk!)

(Makes the NPC's ignore you completely, Put in the same command but with a 0 at the end to make them notice you again. "AiignorePlayers 0")

(should make the game stop spawning npc's)

(heals player debuffs, takes away Joy, refills needs to 100%)

(NPC's will still notice you but will not be suspicious)

(makes the game reveal the map, or the map and quests)

Also When the player is ingame pause the game with default (Esc) go to Developer Cheats and there is...

Heal
Invulnerablility
Ghost Mode/Noclip
Teleport to Shelter
Complete TRacked Object/quest