My understanding is that, when ordered, the first rank would charge bayonet and the second would stay at right shoulder shift.
That was how a charge was supposed to happen, but it didn't always look like that. They might advance without bayonets if they didn't have time to fix them or had none, as was the case with some Confederate regiments. Once the line nears the enemy the ranks brake apart. Some men keep running forward, some run to the rear, others might drop down just short of the enemy line or stop to fire.
The line soon loses all semblance of regular formation; the companies have become merely groups of men, loading and firing and taking advantage of any accident of ground – natural depression, tree, rock, even a pile of fence rails that will give protection. But if the soldier is about where he belongs – to the right or left of the regimental colors, according to the normal place of his company in line – he feels reasonably sure of resuming formation whenever the command may come to "cease firing" and to "dress on colors" preparatory to an advance or charge. If the latter, though the move may begin in perfect order, it is almost immediately lost.
The charge delivered by our brigade at Frayser's Farm. . . was, as seen by a Federal general who was captured there, "in V-shape, without order and in perfect recklessness." This formation was in no wise intentional, the apex of the V in question being simply the brigade commander, General Field, who personally conducted the attack upon the battery and the slope of the sides, as the individual prowess of his followers might determine. Even more characteristic of a Confederate infantry onset was the description of an officer of high rank on that side, "A tumultuous rush of men each aligning on himself and yelling like a demon on his own hook."
- Allen C. Redwood (55th Virginia Infantry), Photographic History of the Civil War, Vol 8, 174-76.
And it is not officers alone who give orders, the command to charge may come from a private in the line whose quick eye sees the opportunity, and who's order brooks then no delay. Springing forward, he shouts 'charge, boys, charge!' The line catches his enthusiasm, answers with yells and fallows him in the charge. Generally it is a wild and spontaneous cry from many throats along the line, readily evoked by the least sign of wavering in the enemy. . . .
And a charge looks just as disorderly. With a burst of yells, a long, wavering, loose jointed line sweeps rapidly forward, only now and then one or two stopping to fire, while here and there drop the killed and wounded; the slightly wounded, some of them, giving no heed but rushing on, while others run hurriedly, half-bent, to the rear. The colors drop, are seized again, — again drop, and are again lifted, no man in reach daring to pass them by on the ground. — colors, not bright and whole and clean as when they came fresh from the white embroidering fingers, but since clutched in the storm of battle with grimy, bloody hands, and torn into shreds by shot and shell.
- Berry Benson (Gregg's 1st South Carolina Infantry and later Dunlop's Sharpshooter Battalion), Memoirs of a Confederate Scout and Sharpshooter, 22-23.
There were swaying movements in our line, something like the waves that run along a rope swung losely between two points when it is shaken at an end. Everybody seemed to be tempted forward. Somebody--I believe it was just a private--said in that tone which is always heard by the brave in battle, "Over the fence and charge.". . .
. . . there was no lead to command except the experience of the field and line officers, and the combative, but prudent advancing of the southern volunteers. It is a study for the military critic. Our line looked far more broken and undressed than the militia drill in the Georgia Scenes; but that line, so far as I can judge, was exactly as it ought to have been. It was a combination of Indian weariness and English stubbornness. It had antennae throughout, to tell by delicate contact when to recoil and when to move forward. . . .
- Capt. John Reed (Co. I, 8th Georgia Infantry at the second battle of Deep Bottom), in John Horn, The Siege of Petersburg: The Battles for the Weldon Railroad, August 1864, 86-87, 95.